message: Use correct model
diff: @@ -93,7 +93,7 @@ export class TaskUnitEditComponent implements OnInit {
  removeTask(task: any) {
  this.taskService.deleteItem(task).then(tasks => {
  - this.tasks = (this.tasks.filter(obj => task._id !== obj._id));
  + this.model.tasks = this.model.tasks.filter(obj => task._id !== obj._id);
  this.snackBar.open('Task deleted', 'Delete', {duration: 2000});
  });
  }
  