refreshAll doesn't reattach deleted entities

[hrach]

Entity may get deleted. But, the transaction may fail and refreshAll() is used to recover the rollbacked db state. Therefore refreshAll() has to be able reattach such deleted entity.

try {
	$this->orm->removeAndFlush($location);
} catch (ForeignKeyConstraintViolationException $e) {
	$this->orm->locations->getMapper()->rollback();
	$this->orm->refreshAll();
}

Originally posted by @Patrik-K2D in #480