Yesterday I was reading a question on MSO which I upvoted. While I still had that question open in my browser it was migrated to here. I instantly switched to the migrated question which at that time had as much votes as it had on MSO. I noticed however that there was no more indication that I have voted. So out of curiosity I clicked the upvote button again and to my surprise this did result in an upvote wich allowed me to effectively vote twice on one post. Is this intentional?
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3This was previously filed as a bug, but marked as by design: Migrated question's answers can be upvoted twice by the same user– Sonic the Save Ukraine-hogJan 7, 2021 at 6:45
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3I might add that while that bug is from 2009, the same issue was brought up again in 2017 and the team arrived at the same decision.– Sonic the Save Ukraine-hogJan 7, 2021 at 6:48