I was downvoted correctly on an answer I wrote that lacked some key information. I made the appropriate edit and left a comment explaining that I had edited the answer. I'm not begrudging the original downvote, but I was wondering what (if anything) can I do further in order to ensure that, if my answer is better and merits removal of the downvote, such removal takes place (assuming the downvoter would otherwise be interested)?
If there isn't anything like that, I'm wondering if it's worth thinking about? Coming from the other side, I've also been in a position where I downvoted an answer but told them exactly what was wrong, and then my goal would be to change the downvote to an upvote when the answer was fixed. Is it possible to "subscribe" to an answer as it is edited so that I can be alerted when the answer is fixed?