bug#41108: 27.0.91; `register-read-with-preview' delete pre existing window

[Héctor Enríquez Ramón]

Hi Lars.

It works fine in Emacs branch emacs-27 (last commit).

Thank you very much. Best regards.

On Thu, 22 Oct 2020 at 16:18, Lars Ingebrigtsen <larsi@gnus.org> wrote:

Héctor Enríquez Ramón <hector.e.r@gmail.com> writes:

>  Before `window-configuration-to-register'
>
>  +-------------------+-----------------+
>  |                   |                 |
>  |                   |                 |
>  |                   |                 |
>  |                   |                 |
>  +-------------------+-----------------+
>
>  After `window-configuration-to-register'
>
>  +-------------------------------------+
>  |                                     |
>  |                                     |
>  |                                     |
>  |                                     |
>  +-------------------------------------+
>
>  Then last (wrong) window configuration is saved to register.

I'm unable to reproduce this in Emacs 27.2, but I can't see any obvious
changes in this code, either.

Can you give a recipe to reproduce this bug, starting from "emacs -Q"?

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