bug#69930: 29.1; onedrive

[Eli Zaretskii]

> From: Stephen Vavasis <vavasis@uwaterloo.ca>
> CC: "69930@debbugs.gnu.org" <69930@debbugs.gnu.org>
> Date: Thu, 21 Mar 2024 17:35:24 +0000
> 
> Thanks for getting back to me so quickly!  I just did some quick testing: the 
> problem persists even with emacs -Q.  However, changing the variable 
> backup-by-copying seems to fix the problem.  Thanks!  I will let a few 
> colleagues know about this setting.

Thanks, I'm therefore closing this bug.

(By default, Emacs renames the original file to the backup file, and
then writes a new file with the edited contents, under the name of the
original file.  I think this is why the history feature doesn't work:
it sees each time a completely new files, just with the same name.)