Epic::getEpicGridColumnTags

private function getEpicGridColumnTags(int $userId, array $taskIds): string
{
	$taskService = new TaskService($userId);

	$tags = empty($taskIds) ? [] : $taskService->getTagsByTaskIds($taskIds);

	$tagsNodes = [];
	foreach ($tags as $tagName)
	{
		$tagsNodes[] = '
'.HtmlFilter::encode($tagName).'
';
	}

	return '
'.implode('', $tagsNodes).'
';
}