A specific Search not giving results on safebooru

I was randomly searching on Safebooru and came to this page which says it has no entries.
http://safebooru.donmai.us/post/index?tags=squatting

Now, the squatting tag definitely has Safe entries.

This search function works on Danbooru
http://danbooru.donmai.us/post/index?tags=squatting

I'm just wondering why this is happening.

It's probably just some kind of a cache-related issue. Wait long enough, and it should fix itself.

This seems to be broken still. Please create a Trac ticket.

chinadress has the same issue. See trac #1129.