Thread:Project:Support desk/Corrupt namespace index?

I created two custom namespaces via LocalSettings after creating the content pages using those namespaces, then ran the namespaceDupes script to allocate the pages to the necessary index. I encountered an error due to a redirect page, then re-ran the script after deleting the offending page. Unfortunately, running the script may have corrupted the second namespace index, since the article tab (the link that points to the article, besides the Discussion tab) points to the first namespace index. Everything else is functioning properly, though.

Not a big deal, though, as I've moved the pages to a different index, but it would be great if I could re-use that index. So how do I fix it? I can't find which database table contains the namespace information. Or is there some cache I just need to clear?