[player] Improve event handling on 'NavigationDenied'

Show warning messages of input fields at event 'NavigationDenied' only
if reason "responsesIncomplete" is sent

docs/release-notes-player.txt

@@ -5,6 +5,7 @@ Player
  - Color the disabled progress bar of the media player green
  - Fix the section from being placed in front of elements with negative z-index
  - Fix saving of drop list elements
+ - Show warning messages of input fields at event 'NavigationDenied' only if reason "responsesIncomplete" is sent
 
 1.12.0
 - Use fixed size property for dynamic button, drop-list and text-field components

projects/player/src/app/components/unit-state/unit-state.component.ts

@@ -126,7 +126,9 @@ export class UnitStateComponent implements OnInit, OnDestroy {
     console.log('player: onNavigationDenied', message);
     const reasons = message.reason?.map((reason: string) => this.translateService.instant(reason));
     this.messageService.showWarning(reasons?.join(', ') || this.translateService.instant('noReason'));
-    this.form.markAllAsTouched();
+    if (message.reason && message.reason.find(reason => reason === 'responsesIncomplete')) {
+      this.form.markAllAsTouched();
+    }
   }
 
   private addGroup = (group: ChildFormGroup): void => {