ActualEntitySelector::getRankableList

protected function getRankableList($entityTypeId)
{
	$list = [];
	if ($this->canUseDuplicates($entityTypeId))
	{
		// get list with default ranking
		foreach ($this->duplicates as $duplicate)
		{
			$list = array_merge($list, $duplicate->getEntityIDsByType($entityTypeId));
		}
	}

	if (empty($list))
	{
		$entity = $this->getEntityByTypeId($entityTypeId);
		$list = array_merge($list, $entity['ID']);
	}

	// unique list
	return array_unique($list);
}