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How comes this question has three accepted answers (Paul's, tdammers', BalusC's)?

Bug, feature or is Firefox just cheating me (happening quite often lately)?

Edit (considering comments): more likely a bug according the time stamps on the second two check-marks

Edit 2: bug, probably caused by 2 other question being merged to that question (as noted by Shog9, see below).

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This looks like an extension of this bug. That said, the timeline of that question has some really wonky stats in terms of acceptance. – Grace Note Jan 28 '11 at 20:39
Bug. If you look at the time stamps on the second two checkmarks, they are very wrong. – jjnguy Jan 28 '11 at 20:39
I want to accept an answer too! – Pëkka Jan 28 '11 at 20:40
I'm pretty sure that shouldn't be possible. Given the accept times, I'm guessing Paul's is the real accepted answer. – Gelatin Jan 28 '11 at 20:40
@Grace - yes, seams so, but the question referenced by that bug (now) only has one answer at all. – Carlos Heuberger Jan 28 '11 at 21:01
Interesting, Carlos. The titular example, the other answer was deleted. Pop's example in the comments doesn't have any deleted answers but the acceptance was cleared. Strange, strange. – Grace Note Jan 28 '11 at 21:03
FWIW, two other questions were merged into that one... Normally, this doesn't result in multiple accepted answers, but in this case it appears that two folks got lucky! – Shog9 Jan 28 '11 at 21:13
I have a feeling though that this (the check marks showing) is a recent phenomenon. My bet is it's not more than a week or two old. – Pëkka Jan 28 '11 at 21:23
@Pekka - second that... I never noted it before. @Shog9 - thanks, seams like that is the source – Carlos Heuberger Jan 28 '11 at 21:36
@Pekka, @Shog9 - you're both right, it is recent and it is with merges, see my answer below, the fix has already been deployed to correct existing and prevent it in future merges. – Nick Craver Jan 28 '11 at 22:07
up vote 2 down vote accepted

The problem here was a change I put in that stored Accepted answer directly on the a result of that and not considering question question merges, answers that were migrated (75 on SO) "carried over" the check with the merge.

A fix this this has been deployed, fixing the data and correcting the display to what it was previously.

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Well done. Most new employees wait at least a month before breaking things, but you're ahead of the game already! – mmyers Jan 28 '11 at 22:09
Any chance you broke the OR queries about an hour ago? – Uphill Luge Jan 29 '11 at 0:43
@Hans - not that I'm aware of, are you having issues? – Nick Craver Jan 29 '11 at 0:57
It's doggone goofy, I'll try to document it when I see some kind of pattern. – Uphill Luge Jan 29 '11 at 1:12

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