I saw this question , then checked if there was old questions about the same topic. I saw a duplicate. When I wanted to post it (the duplicate) but another user already did. I upvoted his comment. Then saw the close button and voted.
What I noticed was that the close vote was at 1. By the time I upvoted the comment and voted to close the question, it was at 3; meaning that I possibly voted twice. Is this a bug or maybe did another user vote to close it at the same time?