I've just had the same issue with When Perl saved the day (and Python couldn't). Remembering this thread and my previous woes (link in the OP), I made sure I had moved it before approving it. The moderation history implies otherwise. Could there be some sort of race condition whereby the database had not been updated with the move by the time I approved? If this is not fixable (I understand the age of the code base), is there some way of warning moderators not to approve for $time after moving?