message: Fix isEmpty error with panel in vue
diff: @@ -76,14 +76,13 @@ export class SurveyElementVue extends Vue {
  var cssClasses = element.cssClasses;
  var titleClass = cssClasses.titleContainer;
  - if (!element.isEmpty()) {
  + if (!element.isPanel && !element.isEmpty()) {
  titleClass += " " + cssClasses.titleContainerAnswer;
  }
  - if (element.errors.length > 0) {
  + if (!element.isPanel && element.errors.length > 0) {
  titleClass += " " + cssClasses.titleContainerError;
  }
  -
  return titleClass;
  }
  getHeaderClass(element: Question) {
  