I had the wrong version of a book inadvertently uploaded once. When the error was caught, we immediately uploaded the final draft and notified those reviewers we knew had it already. Then as reviews came in, if they mentioned the editing, I replied to apologize and explain. All but two reviewers accepted a free updated version and then revised their review accordingly. I was hesitant to respond to the reviewers but it ended up being a positive experience. I believe its all about respectful communication.

Hmm... sounds as if Anya is going to have a difficult time with it.