WorkgroupUserEvent::clearNotRealChanges

private function clearNotRealChanges(array $changed): array
{
	$realChanges = [
		'ROLE',
	];

	foreach ($changed as $key => $relationKey)
	{
		$changes = $this->getChanges($relationKey);
		if (!array_intersect_key($changes, array_flip($realChanges)))
		{
			unset($changed[$key]);
		}
	}

	return $changed;
}