Q:

Is it okay to not revoke a down-vote on an incorrect answer after it's been edited, after other correct answers have been posted?

Here's the situation: I visited a ~1 minute old question which no answers posted on it. I then submitted my (correct) answer to see that whilst I was answering an incorrect answer had been posted. (I guess this could fall under the Fastest Gun in the West problem, but I'm not sure if that applies when the answer isn't actually correct.)
As the answer was incorrect, I down-voted it and proceeded to re-read the question just to make sure I hadn't missed anything. By the time I'd finished the incorrect answer had been edited - this time it was correct, mentioning everything I'd mentioned in my own answer.
This all happened within 5 minutes of the incorrect answer being posted, so there is (unfortunately) no public-facing edit history for the originally incorrect answer.
In this situation, am I in the wrong if I leave the answer down-voted?
I'm asking this because in this situation I posted the correct answer first but, after editing, the originally incorrect answer is not only correct but also appears to have been answered correctly first - and thus will probably receive accepted answer status.

A:

In this situation, am I in the wrong if I leave the answer down-voted?

Yes. Downvotes should indicate a bad or wrong answer. If the poster fixed the answer, the downvotes should be redacted. It is a very similar mechanic to closing, once the question has been fixed it should be retracted.

