update header if start / end date changed / an activity deleted

app/Models/Activity.php

@@ -78,9 +78,7 @@ class Activity extends Model
 				$data->updatePersentaseProgress();
 				$data->updateCostActual();
 			}
-			if($this->start_date != request()->start_date || $this->end_date != request()->end_date) {
+			$data->updateStartEndDateHeader();
-				$data->updateStartEndDateHeader();
-			}
 		});
 
 	}