Workgroup::reduceSyncList

private function reduceSyncList(array $workgroupsToSync = []): array
{
	$result = [];

	foreach ($workgroupsToSync as $workgroupData)
	{
		$workgroupId = (int) $workgroupData['groupId'];
		$result[$workgroupId] = $workgroupData;
	}

	return array_values($result);
}