I've seen a few questions that are flagged as duplicates, but the questions they are apparently duplicates of will elicit completely different answers, and it's just really annoying.
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That is a misflag and the question shouldn't be marked as duplicate. If you see that happening, leave a comment saying that it shouldn't be marked as duplicate and point out that answer doesn't apply. I think that you can put a moderator flag explaining the situation and ask the close votes to be cleared, but a mod clarifying if that's OK would be better.
That's OK. Asker should put a bounty on the other question saying that the answers doesn't help with his case.