bug#11795: 24.1.50; wdired: C-c C-c loses marks and positions of renamed files

[Juri Linkov]

> I must say that I'm a bit reluctant to force a revert in other buffers.
> Because some aspects of the these buffers may be lost that maybe were
> important for the user - like killed files (they reappear when
> reverting) or any marks (e.g. belonging to positions stored in a
> register).  That's why I tried to avoid reverting.

Not reverting means a lot of trouble.  For example, you have to detect
the situation when a file is in the killed state, so not to add its
renamed file line to the Dired buffer in this case, etc.

A less error-prone approach would be to allow a revert to avoid
all these nuances.