Sorry if this has been asked before or the information is easily available, but I couldn't find it.
I accidentally upvoted an incorrect answer, so then I clicked on the downvote arrow because I thought that would reverse it. The answer then showed as having a score of -1, which I can't be sure was as a result of my action, but did I do the wrong thing? I also lost one point of reputation, so the system definitely counted it as a downvote rather than a 'vote reversal', I guess. Is there a way to reverse an upvote without it counting as a downvote?
EDIT: I think I just had the same thing happen to one of my own answers. My rep went up by 10 and then immediately down to 2 lower than it had been before. Of course it's possible that the person really meant to downvote my answer and just clicked the wrong arrow to start with, but I do think it more likely that they accidentally clicked on the upvote arrow and then wanted to reverse it.
Does anyone think it'd be worth making a feature request for some kind of delay before you can click the opposite arrow to the one you just clicked? (And perhaps a message that comes up telling you how to reverse a vote if you do try?)