Is it possible to retract flags? It has happened a couple of times that I have flagged a post and in the time between flagging and a mod getting to it, it gets edited. I normally only flag if it looks like the post will not get improved but just occasionally the changes are made. It seems like it is an issue that could be easily dealt with.
Flagging generates work for the moderators which, if a post is edited to fix the problems, means unnecessary work - then I'd be happy to retract my flag (and actually I don't want disputed flags in my stats!)