bug#50572: 28.0.50; [PATCH] fix VC to find the responsible backend with the most specific path.

[Eli Zaretskii]

> From: Manuel Giraud <manuel@ledu-giraud.fr>
> Date: Mon, 13 Sep 2021 17:47:19 +0200
> 
> When calling 'vc-next-action' on an unregistered file, VC could choose a
> backend that is very far above this file in the directory hierarchy.
> 
> In my case, it chooses SVN as backend (because I have one in my homedir)
> but I wanted it to choose the Git backend of the directory this file
> resides.
> 
> This patch solves this issue by selecting the backend with the most
> specific (in fact, the longest string) path to the file.

Isn't that already available with "C-u C-x v v"?