developed::saveManyToOneReference

private function saveManyToOneReference($reference, $assoc)
{
	if ($reference instanceof $assoc['targetEntity'])
	{
		$reference = clone $reference;
		$reference->{$assoc['inversedBy']} = null;
		$reference->save();
		$this->{$assoc['join']['field'][0]} = $reference->getId();
	}
}