Fixes empty chip issue when user adds empty new line.

awx/ui_next/src/screens/Template/Survey/SurveyQuestionAdd.jsx

@@ -18,6 +18,13 @@ export default function SurveyQuestionAdd({ survey, updateSurvey }) {
         );
         return;
       }
+      if (question.type === 'multiselect') {
+        question.default = question.default
+          .split('\n')
+          .filter(v => v !== '' || '\n')
+          .map(v => v.trim())
+          .join('\n');
+      }
       const newSpec = survey.spec ? survey.spec.concat(question) : [question];
       await updateSurvey(newSpec);
       history.push(match.url.replace('/add', ''));

awx/ui_next/src/screens/Template/Survey/SurveyQuestionEdit.jsx

@@ -39,6 +39,13 @@ export default function SurveyQuestionEdit({ survey, updateSurvey }) {
       if (questionIndex === -1) {
         throw new Error('Question not found in spec');
       }
+      if (formData.type === 'multiselect') {
+        formData.default = formData.default
+          .split('\n')
+          .filter(v => v !== '' || '\n')
+          .map(v => v.trim())
+          .join('\n');
+      }
       await updateSurvey([
         ...survey.spec.slice(0, questionIndex),
         formData,

awx/ui_next/src/screens/Template/Survey/SurveyQuestionForm.jsx

@@ -68,10 +68,8 @@ function SurveyQuestionForm({
 }) {
   const defaultIsNotAvailable = choices => {
     return defaultValue => {
-      const answerChoices = new Set(choices);
-      const defaultAnswers = new Set(defaultValue);
       let errorMessage;
-      const found = [...defaultAnswers].every(dA => answerChoices.has(dA));
+      const found = [...defaultValue].every(dA => choices.indexOf(dA) > -1);
 
       if (!found) {
         errorMessage = i18n._(