Wikipedia is occasionally (very rarely?) showing diffs that are inconsistent
with the article content. Upon purging the diff cache, everything looks OK
again. Unfortunately, the cache of this incident has been purged already, so it
cannot be reproduced any more.
Screenshot at the time of my particular incident:
Discussion on #wikimedia-tech, confirming other people also seeing this, and
suggesting that it's not an isolated incident:
[08 21:24'31] <intgr> WTF, see this edit:
[08 21:24'52] <intgr> It appears as if the person added three links to the
article, but the preview only shows one at the end.
[08 21:27'41] <intgr> Can anyone confirm that it doesn't just appear that way to me?
[08 21:27'41] <Duesentrieb> intgr: that's... scarry.
[08 21:28'37] <Duesentrieb> domas: yea, right
[08 21:28'54] <Duesentrieb> intgr: yes, me.
[08 21:28'55] <Splarka> intgr: that does look like a funky diff
[08 21:29'08] <Duesentrieb> domas: look at intgr's diff link
[08 21:29'48] <domas> whats in it?
[08 21:29'57] <Simetrical> domas: Diff doesn't match the resultant text.
[08 21:30'04] <Duesentrieb> domas: the diff shows bogus changes
[08 21:30'11] <domas> hehe
[08 21:30'13] <domas> interesting
[08 21:32'30] <Splarka> another funky diff:
VP/T April 6th)
[08 21:32'39] <domas> refresh
[08 21:32'52] <domas> hehe
[08 21:33'13] <domas> 'unknown exception'
[08 21:33'24] <domas> ok, I guess I destroyed traces of previous diff corruption
[08 21:33'43] <Splarka> and another one from 3 days ago:
[08 21:34'34] <Splarka> (but that one seems fix-ed now)
[08 21:34'39] <Duesentrieb> domas: tnx for fixing it
[08 21:34'50] <domas> its not fixing
[08 21:34'52] <intgr> Sounds like duct tape.
[08 21:34'54] <domas> I just purged the diff cache
[08 21:35'09] <Duesentrieb> domas: well, as long as the funky stuff doesn't get
in there again...
[08 21:35'22] <intgr> Well, it'll happen again sooner or later.
[08 21:35'28] <Splarka> the quicker differ cacher purger