Add additional validations for placeholders in message properties

Closes #38540

Signed-off-by: Alexander Schwartz <alexander.schwartz@gmx.net>

js/apps/account-ui/maven-resources-community/theme/keycloak.v3/account/messages/messages_ca.properties

@@ -89,12 +89,12 @@ signedInDevices=Dispositius identificats
 missingPasswordMessage=«{{0}}»: Indiqueu la contrasenya.
 otp-help-text=Introduïu el codi de verificació de l'aplicació d'autenticació.
 error-invalid-uri-scheme=«{{0}}» té un esquema d’URL invàlid.
-error-user-attribute-read-only=El camp {0} és només de lectura.
-error-invalid-date=La data «{0}» no és vàlida.
-missingEmailMessage=«{0}»: Indiqueu una adreça electrònica.
+error-user-attribute-read-only=El camp {{0}} és només de lectura.
+error-invalid-date=La data «{{0}}» no és vàlida.
+missingEmailMessage=«{{0}}»: Indiqueu una adreça electrònica.
 applicationsIntroMessage=Feu seguiment i gestioneu els permisos de les aplicacions per a accedir al vostre compte
 error-invalid-length=«{{0}}» ha de tindre una llargària d’entre {{1}} i {{2}}.
-missingLastNameMessage=«{0}»: Indiqueu els vostres cognoms.
+missingLastNameMessage=«{{0}}»: Indiqueu els vostres cognoms.
 linkedLoginProviders=Proveïdors d'entrada enllaçats
 inUse=En ús
 client=Client
@@ -113,13 +113,13 @@ termsOfService=Condicions del servei
 requestor=Sol·licitant
 shareWith=Comparteix amb
 updateCredAriaLabel=Actualitza la credencial
-error-pattern-no-match=«{0}» no té el format requerit.
+error-pattern-no-match=«{{0}}» no té el format requerit.
 application=Aplicació
 unlinkedLoginProviders=Proveïdors d'entrada no enllaçats
 applicationDetails=Detalls de l'aplicació
 successRemovedMessage={{userLabel}} s'ha eliminat.
 deleteAccountWarning=Això és irreversible. Totes les vostres dades es destruiran permanentment i no seran accessibles.
-error-person-name-invalid-character=«{0}» conté un caràcter no vàlid.
+error-person-name-invalid-character=«{{0}}» conté un caràcter no vàlid.
 user=Usuari
 applications=Aplicacions
 username=Nom d'usuari

js/apps/account-ui/maven-resources-community/theme/keycloak.v3/account/messages/messages_el.properties

@@ -17,20 +17,20 @@ edit=Επεξεργασία
 otp-display-name=εφαρμογή ταυτοποίησης
 linkedEmpty=Κανένας συνδεδεμένος πάροχος
 directMembership=Άμεση συμμετοχή
-error-invalid-length-too-short=Το χαρακτηριστικό {0} πρέπει να έχει ελάχιστο μήκος {1}.
-error-number-out-of-range-too-big=Το χαρακτηριστικό {0} πρέπει να έχει μέγιστη τιμή {2}.
+error-invalid-length-too-short=Το χαρακτηριστικό {{0}} πρέπει να έχει ελάχιστο μήκος {{1}}.
+error-number-out-of-range-too-big=Το χαρακτηριστικό {{0}} πρέπει να έχει μέγιστη τιμή {{2}}.
 updateEmail=Ενημέρωση email
 two-factor=Έλεγχος ταυτότητας δύο-παραγόντων
 signedInDevicesExplanation=Αποσύνδεση από όποια άγνωστη συσκευή.
 status=Κατάσταση
-error-number-out-of-range-too-small=Το χαρακτηριστικό {0} πρέπει να έχει ελάχιστη τιμή {1}.
+error-number-out-of-range-too-small=Το χαρακτηριστικό {{0}} πρέπει να έχει ελάχιστη τιμή {{1}}.
 removeModalMessage=Αυτό θα αφαιρέσει την τρέχουσα άδεια πρόσβαση που δόθηκε για το {{name}}. Θα πρέπει να δώσετε ξανά πρόσβαση αν θέλετε να χρησιμοποιήσετε αυτή την εφαρμογή.
 lastName=Επώνυμο
 invalidEmailMessage=Μη έγκυρη διεύθυνση email.
 clients=Πελάτες
 filterByName=Φιλτράρισμα Ανά Όνομα ...
 refreshPage=Ανανέωση σελίδας
-error-user-attribute-required=Παρακαλώ ορίστε το χαρακτηριστικό {0}.
+error-user-attribute-required=Παρακαλώ ορίστε το χαρακτηριστικό {{0}}.
 currentSession=Τρέχουσα συνεδρία
 error-empty=Παρακαλώ ορίστε τιμή.
 error-invalid-uri-fragment=Μη έγκυρο κομμάτι URL.
@@ -45,7 +45,7 @@ signOutAllDevicesWarning=Αυτή η ενέργεια θα αποσυνδέσε
 unShareSuccess=Επιτυχής διακοπή διαμοιρασμού πόρου.
 signingIn=Σε είσοδο
 stopUsingCred=Διακοπή χρήσης του {{name}};
-error-number-out-of-range=Το χαρακτηριστικό {0} πρέπει να είναι ένας αριθμός μεταξύ {1} και {2}.
+error-number-out-of-range=Το χαρακτηριστικό {{0}} πρέπει να είναι ένας αριθμός μεταξύ {{1}} και {{2}}.
 thirdPartyApp=Τρίτου-μέρους
 started=Ξεκίνησε
 updateSuccess=Ο πόρος ενημερώθηκε επιτυχώς.
@@ -58,7 +58,7 @@ myResources=Οι Πόροι Μου
 linkedAccountsIntroMessage=Διαχείριση των εισόδων μέσω λογαριασμών σε τρίτους.
 groupDescriptionLabel=Εμφάνιση ομάδων με τις οποίες έχετε συσχετισθεί
 resourceAlreadyShared=Ο πόρος ήδη μοιράζεται με αυτό το χρήστη.
-error-invalid-length-too-long=Το χαρακτηριστικό {0} πρέπει να έχει μέγιστο μήκος {2}.
+error-invalid-length-too-long=Το χαρακτηριστικό {{0}} πρέπει να έχει μέγιστο μήκος {{2}}.
 accountUpdatedMessage=Ο λογαριασμός σας έχει ενημερωθεί.
 logo=Λογότυπο
 password-help-text=Συνδεθείτε βάζοντας το κωδικό πρόσβασής σας.
@@ -89,11 +89,11 @@ signedInDevices=Συνδεδεμένες συσκευές
 missingPasswordMessage=Παρακαλώ ορίστε κωδικό πρόσβασης.
 otp-help-text=Εισάγετε ένα κωδικό επιβεβαίωσης από την εφαρμογή ταυτοποίησης.
 error-invalid-uri-scheme=Μη έγκυρο σχήμα URL.
-error-user-attribute-read-only=Το πεδίο {0} είναι μόνο για ανάγνωση.
+error-user-attribute-read-only=Το πεδίο {{0}} είναι μόνο για ανάγνωση.
 error-invalid-date=Μη έγκυρη ημερομηνία.
 missingEmailMessage=Παρακαλώ ορίστε email.
 applicationsIntroMessage=Διαχειριστείτε το δικαίωμα της εφαρμογής σας να έχει πρόσβαση στο λογαριασμό σας
-error-invalid-length=Το χαρακτηριστικό {0} πρέπει να έχει μήκος μεταξύ {1} και {2}.
+error-invalid-length=Το χαρακτηριστικό {[0}} πρέπει να έχει μήκος μεταξύ {{1}} και {{2}}.
 missingLastNameMessage=Παρακαλώ ορίστε επώνυμο.
 linkedLoginProviders=Συνδεδεμένοι πάροχοι εισόδου
 inUse=Σε χρήση

js/apps/account-ui/maven-resources-community/theme/keycloak.v3/account/messages/messages_fi.properties

@@ -5,16 +5,16 @@ backTo=Takaisin {{app}}
 error-invalid-email=Väärä sähköpostiosoite.
 myResources=Minun resurssini
 password=Salasana
-error-invalid-length-too-long=Ominaisuudella {0} täytyy olla maksimipituus {2}.
+error-invalid-length-too-long=Ominaisuudella {{0}} täytyy olla maksimipituus {{2}}.
 accountUpdatedMessage=Käyttäjätiedot päivitetty.
 error-username-invalid-character=Käyttäjänimi sisältää vääriä merkkejä.
 error-invalid-value=Väärä arvo.
 socialLogin=Kirjaudu sosiaalisen median tunnuksilla
-error-invalid-length-too-short=Ominaisuudella {0} täytyy olla minimipituus {1}.
+error-invalid-length-too-short=Ominaisuudella {{0}} täytyy olla minimipituus {{1}}.
 firstName=Etunimi
-error-number-out-of-range-too-big=Ominaisuudella {0} täytyy olla maksimiarvona {2}.
+error-number-out-of-range-too-big=Ominaisuudella {{0}} täytyy olla maksimiarvona {{2}}.
 name=Nimi
-error-number-out-of-range-too-small=Ominaisuudella {0} täytyy olla minimiarvona {1}.
+error-number-out-of-range-too-small=Ominaisuudella {{0}} täytyy olla minimiarvona {{1}}.
 invalidEmailMessage=Virheellinen sähköpostiosoite.
 lastName=Sukunimi
 expires=Vanhenee
@@ -23,13 +23,13 @@ filterByName=Suodata nimen mukaan ...
 error-invalid-number=Väärä numero.
 description=Kuvaus
 missingPasswordMessage=Anna salasana.
-error-user-attribute-required=Ole hyvä ja määritä ominaisuus {0}.
+error-user-attribute-required=Ole hyvä ja määritä ominaisuus {{0}}.
 error-invalid-uri-scheme=Väärä URL\:n malli.
-error-user-attribute-read-only=Kenttä {0} on "vain luku"-tilassa.
+error-user-attribute-read-only=Kenttä {{0}} on "vain luku"-tilassa.
 error-invalid-date=Väärä päivämäärä.
 missingEmailMessage=Anna sähköpostiosoite.
 applicationsIntroMessage=Seuraa ja hallitse sovelluksiasi, joilla on pääsy tilille
-error-invalid-length=Ominaisuudella {0} täytyy olla pituus väliltä {1} ja {2}.
+error-invalid-length=Ominaisuudella {{0}} täytyy olla pituus väliltä {{1}} ja {{2}}.
 error-empty=Ole hyvä ja määritä arvo. 
 missingLastNameMessage=Anna sukunimi.
 error-invalid-uri-fragment=Väärä URL\:n osa.
@@ -40,7 +40,7 @@ share=Jaa
 error-invalid-uri=Väärä URL.
 email=Sähköposti
 permissionRequests=Lupapyynnöt
-error-number-out-of-range=Ominaisuuden {0} täytyy olla numero väliltä {1} ja {2}.
+error-number-out-of-range=Ominaisuuden {{0}} täytyy olla numero väliltä {{1}} ja {{2}}.
 missingUsernameMessage=Anna käyttäjätunnus.
 fullName={{givenName}} {{familyName}}
 resources=Resurssit

js/apps/account-ui/maven-resources-community/theme/keycloak.v3/account/messages/messages_hu.properties

@@ -18,20 +18,20 @@ otp-display-name=hitelesítő alkalmazás
 selectALocale=Nyelv kiválasztása
 linkedEmpty=Nincsenek összekapcsolt szolgáltatások
 directMembership=Közvetlen tagság
-error-invalid-length-too-short={0} minimális hossza {1} karakter.
-error-number-out-of-range-too-big={0} maximum értéke\: {2}.
+error-invalid-length-too-short={{0}} minimális hossza {{1}} karakter.
+error-number-out-of-range-too-big={{0}} maximum értéke\: {{2}}.
 updateEmail=E-mail cím módosítása
 two-factor=Kétlépcsős azonosítás
 signedInDevicesExplanation=Jelentkezzen ki minden ismeretlen eszközből.
 status=Státusz
-error-number-out-of-range-too-small={0} minimum értéke\: {1}.
+error-number-out-of-range-too-small={{0}} minimum értéke\: {{1}}.
 removeModalMessage=Ezzel törli a(z) {{name}} alkalmazás jelenlegi hozzáféréseit. A hozzáféréseket újra meg kell adni, ha hasznáni szeretné az alkalmazást.
 lastName=Vezetéknév
 invalidEmailMessage=Érvénytelen e-mail cím.
 clients=Kliensek
 filterByName=Név alapú keresés
 refreshPage=Oldal újratöltése
-error-user-attribute-required=Kérem, adja meg a(z) {0} értékét.
+error-user-attribute-required=Kérem, adja meg a(z) {{0}} értékét.
 currentSession=Ez a munkamenet
 error-empty=Kérem, adja meg a mező értékét.
 error-invalid-uri-fragment=Érvénytelen URL fragmens.
@@ -46,7 +46,7 @@ signOutAllDevicesWarning=Ezzel a művelettel kijelentkezik az összes bejelentke
 unShareSuccess=Az erőforrás megosztása megszüntetve
 signingIn=Bejelentkezés
 stopUsingCred=Eltávolítja\: {{name}}?
-error-number-out-of-range={0} értéke {1} és {2} közötti szám kell legyen.
+error-number-out-of-range={{0}} értéke {{1}} és {{2}} közötti szám kell legyen.
 thirdPartyApp=Harmadik fél
 started=Kezdete
 updateSuccess=Az erőforrás módosítva
@@ -59,7 +59,7 @@ myResources=Erőforrásaim
 linkedAccountsIntroMessage=Bejelentkezés kezelése harmadik féltől származó fiókokkal.
 groupDescriptionLabel=Az Önhöz tartozó csoportok megtekintése
 resourceAlreadyShared=Az erőforrás már meg van osztva ezzel a felhasználóval.
-error-invalid-length-too-long={0} maximális hossza {2} karakter.
+error-invalid-length-too-long={{0}} maximális hossza {{2}} karakter.
 accountUpdatedMessage=Felhasználói fiókját módosítottuk.
 logo=Logó
 password-help-text=Bejelentkezés jelszó segítségével.
@@ -90,11 +90,11 @@ signedInDevices=Bejelentkezett eszközök
 missingPasswordMessage=Kérem, adja meg a jelszót.
 otp-help-text=Hitelesítő kód használata alkalmazás segítségével.
 error-invalid-uri-scheme=Érvénytelen URL séma.
-error-user-attribute-read-only=A(z) {0} mező csak olvasható.
+error-user-attribute-read-only=A(z) {{0}} mező csak olvasható.
 error-invalid-date=Érvénytelen dátum.
 missingEmailMessage=Kérem, adja meg az e-mail címet.
 applicationsIntroMessage=Kezelje alkalmazás jogosultságait, hogy hozzáférjen a fiókjához
-error-invalid-length={0} hossza {1} és {2} karakter között kell legyen.
+error-invalid-length={{0}} hossza {{1}} és {{2}} karakter között kell legyen.
 missingLastNameMessage=Kérem, adja meg a vezetéknevet.
 linkedLoginProviders=Összekapcsolt hitelesítő szolgáltatások
 inUse=Használatban

js/apps/account-ui/maven-resources-community/theme/keycloak.v3/account/messages/messages_it.properties

@@ -10,7 +10,7 @@ setUpNew=Impostazione {{name}}
 lastAccessedOn=Ultimo accesso
 permissions=Permessi
 credentialCreatedAt=<0>Creato</0> {{date}}.
-error-username-invalid-character='{0}' contiene caratteri non validi.
+error-username-invalid-character='{{0}}' contiene caratteri non validi.
 infoMessage=Cliccando su 'Rimuovi accesso', rimuoverai le autorizzazioni concesse a questa applicazione. Questa applicazione non utilizzerà più le tue informazioni.
 unknownOperatingSystem=Sistema operativo sconosciuto
 edit=Modifica
@@ -20,26 +20,26 @@ signOut=Esci
 linkedEmpty=Nessun provider collegato
 directMembership=Appartenenza diretta
 accept=Accetta
-error-invalid-length-too-short='{0}' deve avere una lunghezza minima di {1}.
-error-number-out-of-range-too-big='{0}' deve avere un valore massimo di {2}.
+error-invalid-length-too-short='{{0}}' deve avere una lunghezza minima di {{1}}.
+error-number-out-of-range-too-big='{{0}}' deve avere un valore massimo di {{2}}.
 updateEmail=Aggiorna email
 two-factor=Autenticazione a due fattori
 signedInDevicesExplanation=Uscire da tutti i dispositivi sconosciuti.
 status=Stato
-error-number-out-of-range-too-small='{0}' deve avere un valore minimo di {1}.
+error-number-out-of-range-too-small='{{0}}' deve avere un valore minimo di {{1}}.
 removeModalMessage=Questo rimuoverà l’autorizzazione di accesso attualmente concessa per {{name}}. Dovrai concedere nuovamente l’accesso se vuoi utilizzare questa applicazione.
 lastName=Cognome
 invalidEmailMessage='{{0}}': indirizzo email non valido.
 clients=Client
 filterByName=Filtra per nome ...
 refreshPage=Aggiornare la pagina
-error-user-attribute-required=Specificare '{0}'.
+error-user-attribute-required=Specificare '{{0}}'.
 currentSession=Sessione in corso
-error-empty=Specificare il valore di '{0}'.
-error-invalid-uri-fragment='{0}' è un frammento URL non valido.
+error-empty=Specificare il valore di '{{0}}'.
+error-invalid-uri-fragment='{{0}}' è un frammento URL non valido.
 signedOutSession=Disconnesso {{browser}}/{{os}}
 missingFirstNameMessage='{{0}}': inserisci il nome.
-error-invalid-blank=Specificare il valore di '{0}'.
+error-invalid-blank=Specificare il valore di '{{0}}'.
 share=Condiviso
 close=Chiudi
 email=Email
@@ -48,7 +48,7 @@ signOutAllDevicesWarning=Quest'azione disconnetterà tutti i dispositivi che han
 unShareSuccess=La condivisione della risorsa è stata rimossa.
 signingIn=Impostazioni di accesso
 stopUsingCred=Smettere di usare {{name}}?
-error-number-out-of-range='{0}' deve essere un numero compreso tra {1} e {2}.
+error-number-out-of-range='{{0}}' deve essere un numero compreso tra {{1}} e {{2}}.
 thirdPartyApp=Applicazioni di terze parti
 started=Iniziato
 updateSuccess=Risorsa aggiornata con successo.
@@ -61,13 +61,13 @@ myResources=Le mie risorse
 linkedAccountsIntroMessage=Gestire gli accessi tramite utenze di terzi.
 groupDescriptionLabel=Visualizza i gruppi con cui sei associato/a
 resourceAlreadyShared=La risorsa è già condivisa con questo utente.
-error-invalid-length-too-long='{0}' deve avere una lunghezza massima di {2}.
+error-invalid-length-too-long='{{0}}' deve avere una lunghezza massima di {{2}}.
 accountUpdatedMessage=Il tuo utente è stato aggiornato.
 logo=Logo
 password-help-text=Accedere inserendo la password.
 deleteAccount=Elimina utente
 add=Aggiungi
-error-invalid-value='{0}' ha un valore non valido.
+error-invalid-value='{{0}}' ha un valore non valido.
 ipAddress=Indirizzo IP
 resourceName=Nome della risorsa
 unlinkedEmpty=Nessun provider scollegato
@@ -84,23 +84,23 @@ password-display-name=Password
 expires=Scade
 noGroups=Nessun gruppo
 notSetUp={{name}} non è impostato.
-error-invalid-number='{0}' non è un numero valido.
+error-invalid-number='{{0}}' non è un numero valido.
 link=Utente collegato
 description=Descrizione
 update=Aggiorna
 signedInDevices=Dispositivi registrati
 missingPasswordMessage='{{0}}': inserisci la password.
 otp-help-text=Immettere un codice di verifica dall’applicazione Authenticator.
-error-invalid-uri-scheme='{0}' ha uno schema URL non valido.
-error-invalid-date='{0}' è una data non valida.
+error-invalid-uri-scheme='{{0}}' ha uno schema URL non valido.
+error-invalid-date='{{0}}' è una data non valida.
 missingEmailMessage='{{0}}': inserisci l’indirizzo email.
 applicationsIntroMessage=Traccia e gestisci i permessi delle applicazioni nell’accesso al tuo utente
-error-invalid-length='{0}' deve avere una lunghezza compresa tra {1} e {2}.
+error-invalid-length='{{0}}' deve avere una lunghezza compresa tra {{1}} e {{2}}.
 missingLastNameMessage='{{0}}': inserisci il cognome.
 linkedLoginProviders=Provider di accesso collegati
 inUse=In uso
 client=Client
-error-invalid-uri='{0}' è un URL non valido.
+error-invalid-uri='{{0}}' è un URL non valido.
 systemDefined=Sistema definito
 internalApp=Interna
 accessGrantedOn=Accesso concesso il:
@@ -115,13 +115,13 @@ termsOfService=Termini di servizio
 requestor=Richiedente
 shareWith=Condividi con
 updateCredAriaLabel=Aggiorna credenziali
-error-pattern-no-match='{0}' non corrisponde al formato richiesto.
+error-pattern-no-match='{{0}}' non corrisponde al formato richiesto.
 application=Applicazione
 unlinkedLoginProviders=Provider di accesso scollegati
 applicationDetails=Dettagli dell’applicazione
 successRemovedMessage={{userLabel}} è stato rimosso.
 deleteAccountWarning=Questa operazione è irreversibile. Tutti i tuoi dati saranno distrutti in modo permanente e non potranno essere recuperati.
-error-person-name-invalid-character='{0}' contiene caratteri non validi.
+error-person-name-invalid-character='{{0}}' contiene caratteri non validi.
 user=Utente
 applications=Applicazioni
 username=Nome utente
@@ -159,7 +159,7 @@ webauthn-help-text=Usa la tua Passkey per accedere.
 webauthn-passwordless-display-name=Passkey
 webauthn-passwordless-help-text=Usa la tua Passkey per l'accesso senza password.
 passwordless=Senza password
-error-invalid-multivalued-size=Il campo {0} deve avere almeno {1} e al più {2} valore/i.
+error-invalid-multivalued-size=Il campo {{0}} deve avere almeno {{1}} e al più {{2}} valore/i.
 recovery-codes-number-used={{0}} codici di recupero usati
 recovery-codes-number-remaining={{0}} codici di recupero rimanenti
 recovery-codes-generate-new-codes=Genera nuovi codici per assicurarti l'accesso di emergenza al tuo utente

js/apps/account-ui/maven-resources-community/theme/keycloak.v3/account/messages/messages_ka.properties

@@ -60,7 +60,7 @@ unShareAllConfirm=დარწმუნებული ბრძანდებ
 clientTypeHelp=ამ რესურსის ტიპი. შეიძლება გამოიყენოთ სხვადასხვა იგივე ტიპის რესურსების დასაჯგუფებლად.
 missingPasswordMessage='{{0}}': მიუთითეთ პაროლი.
 error-invalid-uri-scheme='{{0}}'-ის URL-ის სქემა არასწორია.
-error-user-attribute-read-only=ველი ({0}) მხოლოდ-წაკითხვადია.
+error-user-attribute-read-only=ველი ({{0}}) მხოლოდ-წაკითხვადია.
 otp-help-text=შეიყვანეთ გადამოწმების კოდი ავთენტიკატორი აპლიკაციიდან.
 missingLastNameMessage='{{0}}': მიუთითეთ გვარი.
 unLinkError=მოხსნა შეუძლებელია მიზეზით: {{error}}

js/apps/account-ui/maven-resources-community/theme/keycloak.v3/account/messages/messages_th.properties

@@ -17,20 +17,20 @@ edit=แก้ไข
 otp-display-name=แอปพลิเคชันพิสูจน์ตัวจริง
 linkedEmpty=ไม่มีผู้ให้บริการที่เชื่อมโยง
 directMembership=การเป็นสมาชิกโดยตรง
-error-invalid-length-too-short=ลักษณะประจำ {0} จะต้องมีความยาวขั้นต่ำ {1}
-error-number-out-of-range-too-big=ลักษณะประจำ {0} จะต้องมีค่าสูงสุด {2}
+error-invalid-length-too-short=ลักษณะประจำ {{0}} จะต้องมีความยาวขั้นต่ำ {{1}}
+error-number-out-of-range-too-big=ลักษณะประจำ {{0}} จะต้องมีค่าสูงสุด {{2}}
 updateEmail=อัปเดตอีเมล
 two-factor=การตรวจสอบสิทธิ์แบบสองปัจจัย
 signedInDevicesExplanation=ลงชื่อออกจากอุปกรณ์ที่ไม่คุ้นเคย
 status=สถานะ
-error-number-out-of-range-too-small=ลักษณะประจำ {0} จะต้องมีค่าขั้นต่ำ {1}
+error-number-out-of-range-too-small=ลักษณะประจำ {{0}} จะต้องมีค่าขั้นต่ำ {{1}}
 removeModalMessage=การกระทำนี้จะลบสิทธิ์การเข้าถึงที่ให้ไว้แก่ {{name}} คุณจะต้องอนุญาตการเข้าถึงอีกครั้งหากต้องการใช้แอปพลิเคชันนี้
 lastName=นามสกุล
 invalidEmailMessage=ที่อยู่อีเมลไม่ถูกต้อง
 clients=ไคลเอนต์
 filterByName=กรองตามชื่อ ...
 refreshPage=รีเฟรชหน้า
-error-user-attribute-required=โปรดระบุลักษณะประจำ {0}
+error-user-attribute-required=โปรดระบุลักษณะประจำ {{0}}
 currentSession=เซสชันปัจจุบัน
 error-empty=โปรดระบุค่า
 error-invalid-uri-fragment=fragment URL ไม่ถูกต้อง
@@ -45,7 +45,7 @@ signOutAllDevicesWarning=การกระทำนี้จะลงชื่
 unShareSuccess=ยกเลิกการแบ่งปันทรัพยากรสำเร็จ
 signingIn=ลงชื่อเข้าใช้
 stopUsingCred=หยุดใช้ {{name}} หรือ?
-error-number-out-of-range=ลักษณะประจำ {0} จะต้องเป็นจำนวนระหว่าง {1} และ {2}
+error-number-out-of-range=ลักษณะประจำ {{0}} จะต้องเป็นจำนวนระหว่าง {{1}} และ {{2}}
 thirdPartyApp=บุคคลที่สาม
 started=เริ่มต้น
 updateSuccess=อัปเดตทรัพยากรสำเร็จ
@@ -58,7 +58,7 @@ myResources=ทรัพยากรของฉัน
 linkedAccountsIntroMessage=จัดการการเข้าสู่ระบบผ่านบัญชีของบุคคลที่สาม
 groupDescriptionLabel=ดูกลุ่มที่คุณเชื่อมโยงอยู่
 resourceAlreadyShared=ทรัพยากรถูกแบ่งปันกับผู้ใช้งานนี้อยู่แล้ว
-error-invalid-length-too-long=ลักษณะประจำ {0} จะต้องมีความยาวสูงสุด {2}
+error-invalid-length-too-long=ลักษณะประจำ {{0}} จะต้องมีความยาวสูงสุด {{2}}
 accountUpdatedMessage=ได้อัพเดตบัญชีของคุณแล้ว
 logo=โลโก้
 password-help-text=ลงชื่อเข้าใช้โดยป้อนรหัสผ่านของคุณ
@@ -89,11 +89,11 @@ signedInDevices=อุปกรณ์ที่ลงชื่อเข้าใ
 missingPasswordMessage=โปรดระบุรหัสผ่าน
 otp-help-text=ป้อนรหัสยืนยันจากแอปพลิเคชันพิสูจน์ตัวจริง
 error-invalid-uri-scheme=scheme URL ไม่ถูกต้อง
-error-user-attribute-read-only=เขตข้อมูล {0} เป็นแบบอ่านอย่างเดียว
+error-user-attribute-read-only=เขตข้อมูล {{0}} เป็นแบบอ่านอย่างเดียว
 error-invalid-date=วันที่ไม่ถูกต้อง
 missingEmailMessage=โปรดระบุอีเมล
 applicationsIntroMessage=ติดตามและจัดการการอนุญาตให้แอปพลิเคชันเข้าถึงบัญชีของคุณ
-error-invalid-length=ลักษณะประจำ {0} จะต้องมีความยาวระหว่าง {1} และ {2}
+error-invalid-length=ลักษณะประจำ {{0}} จะต้องมีความยาวระหว่าง {{1}} และ {{2}}
 missingLastNameMessage=โปรดระบุนามสกุล
 linkedLoginProviders=ผู้ให้บริการเข้าสู่ระบบที่เชื่อมโยง
 inUse=กำลังใช้งาน

js/apps/account-ui/maven-resources-community/theme/keycloak.v3/account/messages/messages_zh_CN.properties

@@ -189,6 +189,6 @@ error-invalid-multivalued-size=屬性 {{0}} 必须至少有 {{1}} 且最多 {{2}
 recovery-authn-code=我的恢复验证码
 recovery-authn-codes-display-name=恢复验证码
 recovery-authn-codes-help-text=如果您的其他 2FA 方式不可用，这些验证码可用于重新获得访问权限。
-recovery-codes-number-used={0} 使用的恢复验证码
-recovery-codes-number-remaining={0} 剩余的恢复验证码
+recovery-codes-number-used={{0}} 使用的恢复验证码
+recovery-codes-number-remaining={{0}} 剩余的恢复验证码
 recovery-codes-generate-new-codes=生成新验证码以确保访问您的帐户

misc/theme-verifier/src/main/java/org/keycloak/themeverifier/VerifyMessageProperties.java

@@ -53,8 +53,10 @@ public class VerifyMessageProperties {
             verifyProblematicBlanks();
             if (validateMessageFormatQuotes) {
                 verifyMessageFormatQuotes();
+                verifyMessageFormatPlaceholders();
             } else {
                 verifyNotMessageFormatQuotes();
+                verifyNotMessageFormatPlaceholders();
             }
         } catch (IOException e) {
             throw new MojoExecutionException("Can not read file " + file, e);
@@ -65,12 +67,7 @@ public class VerifyMessageProperties {
     private final static Pattern DOUBLE_SINGLE_QUOTES = Pattern.compile("''");
 
     private void verifyNotMessageFormatQuotes() {
-        PropertyResourceBundle bundle;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            bundle = new PropertyResourceBundle(fis);
-        } catch (IOException e) {
-            throw new RuntimeException("unable to read file " + file, e);
-        }
+        PropertyResourceBundle bundle = getPropertyResourceBundle();
 
         bundle.getKeys().asIterator().forEachRemaining(key -> {
             String value = bundle.getString(key);
@@ -87,12 +84,7 @@ public class VerifyMessageProperties {
     private static final Pattern SINGLE_QUOTE_START = Pattern.compile("^'[^']");
 
     private void verifyMessageFormatQuotes() {
-        PropertyResourceBundle bundle;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            bundle = new PropertyResourceBundle(fis);
-        } catch (IOException e) {
-            throw new RuntimeException("unable to read file " + file, e);
-        }
+        PropertyResourceBundle bundle = getPropertyResourceBundle();
 
         bundle.getKeys().asIterator().forEachRemaining(key -> {
             String value = bundle.getString(key);
@@ -106,6 +98,52 @@ public class VerifyMessageProperties {
         });
     }
 
+    private static final Pattern DOUBLE_CURLY_BRACES_START = Pattern.compile("\\{\\{[0-9]");
+    private static final Pattern DOUBLE_CURLY_BRACES_END = Pattern.compile("[0-9]}}");
+
+    private void verifyMessageFormatPlaceholders() {
+        PropertyResourceBundle bundle = getPropertyResourceBundle();
+
+        bundle.getKeys().asIterator().forEachRemaining(key -> {
+            String value = bundle.getString(key);
+
+            if (DOUBLE_CURLY_BRACES_START.matcher(value).find()
+                    || DOUBLE_CURLY_BRACES_END.matcher(value).find()) {
+                messages.add("Double curly braces are not allowed in message formats in the backend for in '" + key + "' for file " + file + ": " + value);
+            }
+
+        });
+    }
+
+    private static final Pattern SINGLE_CURLY_BRACE_MIDDLE = Pattern.compile("[^{]\\{[0-9]");
+    private static final Pattern SINGLE_CURLY_BRACE_END = Pattern.compile("[0-9]}$");
+    private static final Pattern SINGLE_CURLY_BRACE_START = Pattern.compile("^\\{[0-9]");
+
+    private void verifyNotMessageFormatPlaceholders() {
+        PropertyResourceBundle bundle = getPropertyResourceBundle();
+
+        bundle.getKeys().asIterator().forEachRemaining(key -> {
+            String value = bundle.getString(key);
+
+            if (SINGLE_CURLY_BRACE_START.matcher(value).find()
+                    || SINGLE_CURLY_BRACE_MIDDLE.matcher(value).find()
+                    || SINGLE_CURLY_BRACE_END.matcher(value).find()) {
+                messages.add("Single curly quotes are not supported as placeholders for the frontend in '" + key + "' for file " + file + ": " + value);
+            }
+
+        });
+    }
+
+    private PropertyResourceBundle getPropertyResourceBundle() {
+        PropertyResourceBundle bundle;
+        try (FileInputStream fis = new FileInputStream(file)) {
+            bundle = new PropertyResourceBundle(fis);
+        } catch (IOException e) {
+            throw new RuntimeException("unable to read file " + file, e);
+        }
+        return bundle;
+    }
+
     PolicyFactory POLICY_SOME_HTML = new org.owasp.html.HtmlPolicyBuilder()
             .allowElements(
                     "br", "p", "strong", "b"
@@ -114,12 +152,7 @@ public class VerifyMessageProperties {
     PolicyFactory POLICY_NO_HTML = new org.owasp.html.HtmlPolicyBuilder().toFactory();
 
     private void verifySafeHtml() {
-        PropertyResourceBundle bundle;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            bundle = new PropertyResourceBundle(fis);
-        } catch (IOException e) {
-            throw new RuntimeException("unable to read file " + file, e);
-        }
+        PropertyResourceBundle bundle = getPropertyResourceBundle();
 
         PropertyResourceBundle bundleEnglish;
         String englishFile = file.getAbsolutePath().replaceAll("resources-community", "resources")
@@ -174,12 +207,7 @@ public class VerifyMessageProperties {
             // Only check EN original files, as the other files are checked by the translation tools
             return;
         }
-        PropertyResourceBundle bundle;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            bundle = new PropertyResourceBundle(fis);
-        } catch (IOException e) {
-            throw new RuntimeException("unable to read file " + file, e);
-        }
+        PropertyResourceBundle bundle = getPropertyResourceBundle();
 
         bundle.getKeys().asIterator().forEachRemaining(key -> {
             String value = bundle.getString(key);

misc/theme-verifier/src/test/java/org/keycloak/themeverifier/VerifyMessagePropertiesTest.java

@@ -51,6 +51,31 @@ class VerifyMessagePropertiesTest {
         MatcherAssert.assertThat(verify, Matchers.hasItem(Matchers.containsString("Didn't find anchor tag")));
     }
 
+    @Test
+    void verifySingleCurlyBraces() throws MojoExecutionException {
+        List<String> verify = getFile("doubleCurlyBraces_en.properties").withValidateMessageFormatQuotes(true).verify();
+        MatcherAssert.assertThat(verify, Matchers.hasItem(Matchers.containsString("Double curly braces are not allowed")));
+    }
+
+    @Test
+    void verifyNoDoubleCurlyBrances() throws MojoExecutionException {
+        List<String> verify = getFile("doubleCurlyBraces_en.properties").withValidateMessageFormatQuotes(true).verify();
+        MatcherAssert.assertThat(verify, Matchers.hasItem(Matchers.containsString("Double curly braces are not allowed")));
+    }
+
+    @Test
+    void verifyNoSingleCurlyBraces() throws MojoExecutionException {
+        List<String> verify = getFile("singleCurlyBracesEnd_en.properties").withValidateMessageFormatQuotes(false).verify();
+        MatcherAssert.assertThat(verify, Matchers.hasItem(Matchers.containsString("Single curly quotes are not supported")));
+
+        verify = getFile("singleCurlyBracesMiddle_en.properties").withValidateMessageFormatQuotes(false).verify();
+        MatcherAssert.assertThat(verify, Matchers.hasItem(Matchers.containsString("Single curly quotes are not supported")));
+
+        verify = getFile("singleCurlyBracesStart_en.properties").withValidateMessageFormatQuotes(false).verify();
+        MatcherAssert.assertThat(verify, Matchers.hasItem(Matchers.containsString("Single curly quotes are not supported")));
+
+    }
+
     @Test
     void verifyNoSingleQuoteForMessageFormat() throws MojoExecutionException {
         List<String> verify = getFile("singleQuotesStart_en.properties").withValidateMessageFormatQuotes(true).verify();

misc/theme-verifier/src/test/resources/doubleCurlyBraces_en.properties

@@ -0,0 +1,17 @@
+#
+# Copyright 2025 Red Hat, Inc. and/or its affiliates
+# and other contributors as indicated by the @author tags.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+key={{0}}

misc/theme-verifier/src/test/resources/singleCurlyBracesEnd_en.properties

@@ -0,0 +1,17 @@
+#
+# Copyright 2025 Red Hat, Inc. and/or its affiliates
+# and other contributors as indicated by the @author tags.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+key=x{0}

misc/theme-verifier/src/test/resources/singleCurlyBracesMiddle_en.properties

@@ -0,0 +1,17 @@
+#
+# Copyright 2025 Red Hat, Inc. and/or its affiliates
+# and other contributors as indicated by the @author tags.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+key=x{0}x

misc/theme-verifier/src/test/resources/singleCurlyBracesStart_en.properties

@@ -0,0 +1,17 @@
+#
+# Copyright 2025 Red Hat, Inc. and/or its affiliates
+# and other contributors as indicated by the @author tags.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+key={0}x