/**
  * Called after loadFormData() in loadForm() before the form is created
  *
  * @return boolean Are we undeleting or deleting?
  */
 public function isUndeleting()
 {
     if ($this->respondentTrack->hasSuccesCode()) {
         return false;
     }
     $this->editItems[] = 'restore_tokens';
     return true;
 }