Board Thread:Support Requests - Getting Technical/@comment-10383371-20130728084301/@comment-11733175-20130730095426

To be honest there are only 2 ways you're going to find out:
 * 1) Test it yourself.
 * 2) Email Wikia and hope someone on community support knows. They may need to forward it to tech staff which increases the response time significantly.

Alternatively, because Special:Search is in theory a core mediawiki module, you can ask in the #mediawiki irc channel on freenode. Many of mediawiki's developers can be found there and whilst Wikia has altered search a bit they may know the answer to your questions.