Bug: Katakana in search doesn't match

Description of your request or bug report: when searching for ダンジョンに出会いを求めるのは間違っているだろうか S2 | L29 (or ダンジョン飯 S1 | L29) in My Videos, inputting ダンジョン returns nothing. Searches that do work: Dungeon, ダンジョ, ダンジョンに. Searching だんじょん also returns no hits.

Searching in the site-wide video page doesn’t have this issue - only My Videos

Trello link: (leave in blank)