RE: Reverting but keeping undo

[Drew Adams]

> I can easily think of reasons why it's good.
> I control compilation with file variables.
> If I change the file variables, a revert makes Emacs aware of the new
> values.  I certainly don't want to lose my undo history.
> 
> I say, great change.

I've already said that I think it is good for users to be able to hold onto 
undo history when reverting.  Be _able_ to.

As a matter of fact, as one user, I have used this feature for quite a while, 
ever since the original post of the code (command `revert-buffer-keep-undo') on 
Emacs Wiki.

What should have been discussed, and is not necessarily a good change, is 
replacing `revert-buffer' with this behavior, useful as it might be and 
preferred as it might be for interactive use by some users (including me).