for more background/details on how search was changed on wikia.com, see
http://community.wikia.com/wiki/User_blog
opp/Updates_to_How_We_Search
tl;dr:
old method was "when searching, if an exact match exists GO there, otherwise show search results", this allowed using the Special:Search entry point as a "safe" bounce point for both pages if they existed (like using the direct url path), or showing a searching interface if they didnt
wikia's new method is now "always show a search page when searching, but if an exact match exists, feature it at the top, but no longer GO to match"
have fun and leave reports/critical bugs on the search side on the User_blog page above so wikia can fix resolve them