TaskService::getFilesIdsForTaskFromMessage

protected function getFilesIdsForTaskFromMessage(Message $message): array
{
	$copies = $message->getFiles()->getCopies();
	$copies->addToTmp(TemporaryFileService::TASK_SOURCE);
	$newIds = [];

	foreach ($copies as $copy)
	{
		$newIds[] = FileUserType::NEW_FILE_PREFIX . $copy->getId();
	}

	return $newIds;
}