Removing debug message and adding help details about empty groups

awx/main/models/inventory.py

@@ -181,6 +181,8 @@ class Inventory(CommonModelNameNotUnique, ResourceMixin, RelatedJobsMixin):
             "If enabled, the inventory will prevent adding any organization "
             "instance groups to the list of preferred instances groups to run "
             "associated job templates on."
+            "If this setting is enabled and you provided an empty list, the global instance "
+            "groups will be applied."
         ),
     )
 

awx/main/models/jobs.py

@@ -279,6 +279,8 @@ class JobTemplate(UnifiedJobTemplate, JobOptions, SurveyJobTemplateMixin, Resour
         help_text=(
             "If enabled, the job template will prevent adding any inventory or organization "
             "instance groups to the list of preferred instances groups to run on."
+            "If this setting is enabled and you provided an empty list, the global instance "
+            "groups will be applied."
         ),
     )
 
@@ -810,7 +812,6 @@ class Job(UnifiedJob, JobOptions, SurveyJobMixin, JobNotificationMixin, TaskMana
                 for instance_group in getattr(self, obj_type).instance_groups.all():
                     selected_groups.append(instance_group)
                 if getattr(getattr(self, obj_type), 'prevent_instance_group_fallback', False):
-                    logger.error("Breaking in preferred instance group at {}".format(obj_type))
                     break
         if not selected_groups:
             return self.global_instance_groups

awx/ui/src/screens/Inventory/shared/Inventory.helptext.js

@@ -191,7 +191,8 @@ const getInventoryHelpTextStrings = () => ({
   sourcePath: t`The inventory file
           to be synced by this source. You can select from
           the dropdown or enter a file within the input.`,
-  preventInstanceGroupFallback: t`If enabled, the job template will prevent adding any inventory or organization instance groups to the list of preferred instances groups to run on.`,
+  preventInstanceGroupFallback: t`If enabled, the inventory will prevent adding any organization instance groups to the list of preferred instances groups to run associated job templates on.
+          Note: If this setting is enabled and you provided an empty list, the global instance groups will be applied.`,
 });
 
 export default getInventoryHelpTextStrings;

awx/ui/src/screens/Template/shared/JobTemplate.helptext.js

@@ -30,7 +30,8 @@ const jtHelpTextStrings = () => ({
   privilegeEscalation: t`If enabled, run this playbook as an administrator.`,
   enableWebhook: t`Enable webhook for this template.`,
   concurrentJobs: t`If enabled, simultaneous runs of this job template will be allowed.`,
-  preventInstanceGroupFallback: t`If enabled, the job template will prevent adding any inventory or organization instance groups to the list of preferred instances groups to run on.`,
+  preventInstanceGroupFallback: t`If enabled, the job template will prevent adding any inventory or organization instance groups to the list of preferred instances groups to run on.
+      Note: If this setting is enabled and you provided an empty list, the global instance groups will be applied.`,
   enableFactStorage: t`If enabled, this will store gathered facts so they can be viewed at the host level. Facts are persisted and injected into the fact cache at runtime.`,
   enabledOptions: (
     <>