Last modified: 2009-07-22 03:11:38 UTC
This is a bug against Extension:IndexFunction which does not have its own component yet in Bugzilla. See bug 19722. I created page A (via page move) which had an associated {{#index|A|...}} in page B. Then I deleted page A, leaving it on my watchlist. Back to page B, there was an error display saying that page A existed. I altered and stored page B, in the hope to have tables updated, but the error message remained. I was using r53274.
P.S. Unexpectedly, I was not confronted with the message MediaWiki:Indexfunc-editwarn when attempting the page move, it was rather simply accepted.
Should be fixed in r53634. The pagemove form doesn't have any way to show a warning before the move without just preventing it entirely, so the only warning will be after the move. But moving A->B now deletes any index with B as its title.