GNU bug report logs - #6326
23.1.95; `vc-diff' sometimes reports wrong diff status

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Message #8 received at 6326 <at> debbugs.gnu.org (full text, mbox):

From: Dan Nicolaescu <dann <at> gnu.org>
To: Markus Triska <markus.triska <at> gmx.at>
Cc: 6326 <at> debbugs.gnu.org
Subject: Re: bug#6326: 23.1.95; `vc-diff' sometimes reports wrong diff status
Date: Wed, 02 Jun 2010 05:42:27 -0400

Markus Triska <markus.triska <at> gmx.at> writes:

> When I open (in emacs -Q) a file under "git" version control and:
>
>    1) view its log with: C-x v l
>    2) open any previous revision, for example: n n n f
>    3) save the previous revision under a different name:
>       C-x C-w difrev.txt RET
>    4) on difrev.txt, run `vc-diff' with: C-x v =
>
> it unexpectedly says: "No changes between working revision and
> workfile". It SHOULD say that the file is NOT under version control.
> Also other operations like C-x v l should say this but currently don't
> (C-x v l instead unexpectedly displays the log of the original file).

This because `vc-parent-file' still points to the original file. 
Maybe `vc-file-clearprops' (called from `write-file') should also reset `vc-parent-file'.

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