bug#62693: 28.2; VC: CVS: Fix lost file reporting and enable reverting it

[Olivier Certner]

Hi,

> Thank you. What was the effect of wrong local/nonlocal recognition, 
> though? Some misbehavior related to cvs-stay-local?

Yes, exactly. I don't want Emacs to start caching information on local 
repositories, which causes inconsistencies when the repository is manipulated 
outside of Emacs concurrently.
 
> Regarding the new patch, it's great to see the list of examples, but 
> could you instead move it to a test or several inside 
> test/lisp/vc/vc-cvs-tests.el? This file does not exist yet, but you can 
> use vc-git-test.el as an example, in the same directory.

Yes. See next mail.

Regards.

-- 
Olivier Certner