What to do when you answered a question and after some time the question is edit adding more information or changing the question so your answered now has nothing to do with the new question?
Recently, me and some other users answered a question, and some minutes later the asker edited his question adding more specific information about what his problem really was. Then the answers that have already been written got downvoted because they werent answering specific what the question now is about.
What is the best choice here? Deleting the answer? From my point of view it is a bit unfair that some answers get downvoted because of an edit in the question. Of course anyone who reads the question and the answers given is not going to think that the answers are wrong or not useful because the question was edit after the answer was made. Maybe there should be any mechanism to prevent these cases.
What do you think, and what would you do if something like this happens to you?