Before you reach for the VTC as duplicate button, I realize that very similar questions have been asked already. I've been looking through those to find a general guideline that can be applied site-wide, and each of them deals with a specific situation, dealing with a unique question with its own inherent problems.
This post is intended to get a consensus on what the general guideline should be, that will apply as a general rule across the board.
Quite often, we see questions that are closed for one reason or another. In many cases, very minor edits can be changed to bring it back in line and make it suitable for re-opening.
The principle of allowing questions to be edited to allow re-opening is built into the StackExchange network. When you get to a certain reputation level, and are allowed to cast "re-open" votes, there's an option to "edit and re-open" on questions that are in that queue.
So, it's perfectly natural to take a problematic post and try to edit it into shape. Many of us do it. I do it, in the spirit of trying to be helpful, but I'm quickly seeing that this is becoming an issue.
In many of the cases, the edit, minor as it is, is often enough to invalidate existing answers. This, naturally, doesn't sit well with someone who invested time and energy in writing an answer to the question, only to have the question changed.
What should be our official stance on editing a question to make it suitable for re-opening, particularly when that edit is going to invalidate the answers?
I'm initially posting two opposing answers to choose from, and anyone is welcome and encouraged to put other/better possible answers.