Internal error when using advanced search with no words

[Poulpisator]

Steps to reproduce Do this search: Sentences in English having Japanese translations limited to having indirect Japanese translations. https://tatoeba.org/fra/sentences/search?query=&from=eng&to=jpn&user=&orphans=no&unapproved=no&has_audio=&tags=&list=&native=&trans_filter=limit&trans_to=jpn&trans_link=indirect&trans_user=&trans_orphan=&trans_unapproved=&trans_has_audio=&sort=relevance&sort_reverse=

Add a word and the search works well.