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There are a few bits of denormalized data that determine whether a given answer is "accepted": the question knows of an accepted answer, each answer knows if it is accepted, and there are the actual "accept" votes as well. Occasionally, these can get out of sync with one another. That happened here (it shouldn't happen anymore, but this is an old question ...


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First, you surely noted that your question was already asked in a comment in 2011, and that comment was already answered in the following comment: Remember that an accepted answer is not an answer that is universally accepted from all the users; it's the answer that is accepted from the OP, who chooses the answer that helped him more. Only the OP can ...


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