/**
* Propagates a given collection-changed event to all attached collection-changed listeners.
*
* @param CollectionChangedEvent $event
*/
protected function propagateCollectionChangedEvent(CollectionChangedEvent $event)
{
if ($event->getType() === CollectionChangedEvent::ITEM_REMOVED) {
$event->getItem()->removeEntityChangedListener($this);
} else {
$event->getItem()->addEntityChangedListener($this);
}
parent::propagateCollectionChangedEvent($event);
}
