Steps to reproduce:

  1. emacs -Q
  2. visit a version controlled file, say `foo'.
  3. M-x vc-ediff, run it couple of times.

You will see this annoying message many times:

  File foo.~master~ changed on disk.  Reread from disk? (yes or no)

The reason is the ~master~ file is checked out everytime we run
vc-ediff, and after ediff session, the ~master~ buffer is always left
there, hence, when running vc-ediff multiple times it constantly asks
you whether you want to revert.  Why not let it revert automatically?

How about this patch?

-- 
William

http://xwl.appspot.com