Well, that's kind of your own fault, isn't it? These things happen. It's not the biggest disaster ever, and you can easily recover and move on. I don't think this kind of feature is necessary at all. It would add a (in my opinion) completely pointless functionality to combat. If you care that much, just reload the game - I really think you can handle the few seconds that takes.

while that feature might be nice for new players and/or perfectionists, i think it would be a waste of valuable dev time. if you really can't live with the results, there's already the reload function - or you could just accept the loss, move on and learn from your mistakes. i don't mean that in a condescending way - just try it some time - you'll probably learn more by accepting your mistakes and avoiding it the next time then by replaying and correcting the mistakes (at least it works for me that way )