Не знаю актуально ещё кому, смог решить копированием компонента catalog.smart.filter и правкой файла class.php
строка 623
было
[CODE] if ($cache[$PROPERTY_ID][$key]) {
$value = $cache[$PROPERTY_ID][$key]['VALUE'];
$file_id = $cache[$PROPERTY_ID][$key]['FILE_ID'];
$sort = (isset($cache[$PROPERTY_ID][$key]['SORT']) ? $cache[$PROPERTY_ID][$key]['SORT'] : 0);
$url_id = toLower($cache[$PROPERTY_ID][$key]['UF_XML_ID'];
}
[/CODE][COLOR=#c0c5ce][FONT=Consolas, "Courier New", monospace][SIZE=14px]
[/SIZE][/FONT][/COLOR]стало[CODE] if ($cache[$PROPERTY_ID][$key]) {
$value = $cache[$PROPERTY_ID][$key]['VALUE'];
$file_id = $cache[$PROPERTY_ID][$key]['FILE_ID'];
$sort = (isset($cache[$PROPERTY_ID][$key]['SORT']) ? $cache[$PROPERTY_ID][$key]['SORT'] : 0);
$url_id = CUtil::translit(toLower($cache[$PROPERTY_ID][$key]['UF_XML_ID']), "ru");
}[/CODE]
строка 623
было
[CODE] if ($cache[$PROPERTY_ID][$key]) {
$value = $cache[$PROPERTY_ID][$key]['VALUE'];
$file_id = $cache[$PROPERTY_ID][$key]['FILE_ID'];
$sort = (isset($cache[$PROPERTY_ID][$key]['SORT']) ? $cache[$PROPERTY_ID][$key]['SORT'] : 0);
$url_id = toLower($cache[$PROPERTY_ID][$key]['UF_XML_ID'];
}
[/CODE][COLOR=#c0c5ce][FONT=Consolas, "Courier New", monospace][SIZE=14px]
[/SIZE][/FONT][/COLOR]стало[CODE] if ($cache[$PROPERTY_ID][$key]) {
$value = $cache[$PROPERTY_ID][$key]['VALUE'];
$file_id = $cache[$PROPERTY_ID][$key]['FILE_ID'];
$sort = (isset($cache[$PROPERTY_ID][$key]['SORT']) ? $cache[$PROPERTY_ID][$key]['SORT'] : 0);
$url_id = CUtil::translit(toLower($cache[$PROPERTY_ID][$key]['UF_XML_ID']), "ru");
}[/CODE]
просто добавил транслитерацию $url_id , решение для свойства Привязка к элементам в виде списка