Anomie added a subscriber: Anomie. Anomie added a comment.
This reminds me of a long-standing bug (which I can't find at the moment to link to) where the links tables either somehow don't get updated after a revert or somehow the updated entries get overwritten by those from an older revision. I've tried to reproduce it at various times to try to track it down, but I've never been able to.
A purge won't fix it since that doesn't refresh links tables, but a null edit or an API action=purge&forcelinkupdate=1 will.
TASK DETAIL https://phabricator.wikimedia.org/T94302
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To: Anomie Cc: Anomie, Aklapper, XZise, jayvdb, Legoktm, pywikipedia-bugs