GNU bug report logs - #73609
29.1; use-package overwrites custom variables in byte-compiled files

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Al Haji-Ali <abdo.haji.ali <at> gmail.com>, John Wiegley <johnw <at> gnu.org>
Cc: 73609 <at> debbugs.gnu.org
Subject: bug#73609: 29.1; use-package overwrites custom variables in byte-compiled files
Date: Sat, 12 Oct 2024 11:07:22 +0300

> From: Al Haji-Ali <abdo.haji.ali <at> gmail.com>
> Cc: 73609 <at> debbugs.gnu.org
> Date: Fri, 11 Oct 2024 23:25:08 +0100
> 
> 
> 
> > Can you try this with the latest emacs-30 branch of the Emacs Git
> > repository?  I believe some changes were done to use-package there,
> > and they might fix your problem as well.
> 
> I just tried it on the main branch (version 31.0.50) and saw the same behaviour. I also checked the part of the code that I think is the reason and it remains the same.
> 
> Here's how I am able to reproduce the issue:
> 
> --8<---------------cut here---------------start------------->8---
> ;;; 1. Run emacs -Q
> ;;; 2. Define the following function
> 
> (defun bug-73609 (&optional setup)
>   (let ((filename (file-name-concat temporary-file-directory "temp.el")))
>     (if setup
>         (progn (write-region "(use-package org\n:custom\n(org-log-reschedule 'note))"
>                              nil filename)
>                (require 'use-package)
>                (byte-compile-file filename))
>       (load (concat filename "c"))
>       (message "START value is %S, use-package is%s loaded"
>                org-log-reschedule
>                (if (featurep 'use-package)
>                    ""
>                  " NOT"))
>       (setq org-log-reschedule t)
>       (message "BEFORE value is %S" org-log-reschedule)
>       (define-advice enable-theme (:before (theme) enable-theme <at> debug)
>         (message "Loading theme %S" theme))
>       (require 'use-package)
>       (message "AFTER value is %S" org-log-reschedule))))
> 
> ;;; 3. Call
> (bug-73609 t)
> 
> ;;; 4. Restart `emacs -Q` and redefine the function above
> ;;; 5. Run
> (bug-73609)
> 
> ;; The output is
> ; START value is note, use-package is NOT loaded
> ; BEFORE value is t
> ; Loading theme use-package
> ; Loading theme user
> ; AFTER value is note
> --8<---------------cut here---------------end--------------->8---
> 
> 
> I expect the final line to be
> 
> ; AFTER value is t
> 
> as I do not expect that loading `use-package` would change the value of the variable `org-log-reschedule`. 

John, any suggestions or ideas?

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