User blog comment:Rappy 4187/Technical Update: November 2, 2016/@comment-24473195-20161103171231/@comment-24473195-20161105120102

> I've opened a PR so it should be fixed soon.

Thanks.

A bit off topic, but do you happen to know what search backend Wikia uses (it is incredibly unintuitive for some searches)?

It seems to be just a somewhat custom engine as I documented in Help:Searching, but it sometimes returns similar results to mysql. Strangely enough it doesn't support "exact match" which the mysql version they are running supports.