GNU bug report logs - #77188
31.0.50; describe-package: Duplicate installed versions and incorrect Install button state

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From: Eli Zaretskii <eliz <at> gnu.org>
To: david <davidimagid <at> gmail.com>, Philip Kaludercic <philipk <at> posteo.net>, Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 77188 <at> debbugs.gnu.org
Subject: bug#77188: 31.0.50; describe-package: Duplicate installed versions and incorrect Install button state
Date: Sat, 29 Mar 2025 15:08:46 +0300

> From: david <davidimagid <at> gmail.com>
> Date: Sat, 22 Mar 2025 13:42:21 -0400
> 
> Hi Emacs developers,
> 
> I found a bug in the `describe-package` interface.  Here are the steps
> to reproduce it:
> 
> 1. Open Emacs and run `M-x list-packages RET`.
> 2. Click on a package that is already installed (Status: Installed).
> 3. In the "Other versions" section, click on the same version that is
>    already installed.
> 4. The package description now shows "Install" even though the package
>    is already installed.
> 5. If you click "Install", the package is reinstalled, and the "Other
>    versions" section shows the same version twice as installed.
> 
> The same behavior occurs for packages with Status: dependency.  The
> difference is that when you click "Install" in `describe-package`, the
> package changes its status in `list-packages` from "dependency" to
> "installed".  Additionally, the package appears duplicated in the "Other
> versions" section.  However, after restarting Emacs, the package returns
> to its original "dependency" status in `list-packages`.
> 
> Expected behavior:
> - The "Install" button should not be shown if the package is already
>   installed.  Alternatively, the button could be renamed to "Reinstall"
>   or replaced with a "Delete" button to better reflect the available
>   actions for an already installed package.
> - The "Other versions" section should not display duplicate entries for
>   the same installed version.  If you click "Install" again, the package
>   is overwritten, and a third duplicate entry appears as installed.
> 
> In GNU Emacs 31.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version
>  3.24.43, cairo version 1.18.2) of 2025-03-16 built on fedora
> Repository revision: eab14d68b2e72b9a6b8b0cc67c9667c2bfbed4f5
> Repository branch: master
> System Description: Fedora Linux 41 (Workstation Edition)
> 
> Configured using:
>  'configure --with-imagemagick --with-pgtk --with-tree-sitter
>  --with-mailutils --with-sound=yes --with-pdumper=yes
>  --with-dumping=pdumper --with-file-notification=yes --with-gnutls'

Thanks.

Philip and Stefan, any comments?

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