bug#44935: Emacs inserts hardwired org-agenda-files variable, overwriting user options

[Eli Zaretskii <eliz@gnu.org>]

> From: daniela-spit@gmx.it
> Date: Sat, 28 Nov 2020 22:34:07 +0100
> 
> I have identified a problem.  Let a user set the files to be used for
> Org Agenda in .emacs as follows, and consider the situation when the
> file writing.rcl.org does not exist.
> 
> (setq org-agenda-files
>    '("~/02histr/gadmin/writing.rcl.org"
>      "~/02histr/gadmin/meeting.rcl.org"
>      "~/02histr/gadmin/household.rcl.org"))
> 
> Emacs demands that the file writing.rcl.org be removed from org-agenda-files.
> Then Emacs sabotages the user's settings by hardwiring org-agenda-files at the
> end of the file .emacs by inserting:
> 
> (custom-set-variables
>  ;; custom-set-variables was added by Custom.
>  ;; If you edit it by hand, you could mess it up, so be careful.
>  ;; Your init file should contain only one such instance.
>  ;; If there is more than one, they won't work right.
>  '(org-agenda-files
>    '("~/02histr/gadmin/meeting.rcl.org" "~/02histr/gadmin/household.rcl.org")))
> 
> This should be considered a bug.

Shouldn't this be reported to the Org developers?