I guess you'd best run a maintenance script; something like namespaceDupes.php
Siebrand
-----Oorspronkelijk bericht----- Van: mediawiki-l-bounces@lists.wikimedia.org [mailto:mediawiki-l-bounces@lists.wikimedia.org] Namens jidanni@jidanni.org Verzonden: zondag 9 augustus 2009 20:02 Aan: mediawiki-l@lists.wikimedia.org Onderwerp: [Mediawiki-l] page appears in both NS_MAIN and NS_PROJECT
On http://radioscanningtw.wikia.com/wiki/Special:Allpages do you see the page台描:頻率間隔 ?
Well, this is a rare case of a page that was created with a prefix that would later match NS_PROJECT.
I.e., not waiting for them to change $wgSitename first, I created that page as if it was already in that namespace anyway.
Now no matter how much I delete it, I can't get it out of Special:Allpages.