GNU bug report logs - #32950
27.0.50; Strange display bug in *Help* buffer

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Message #28 received at 32950 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Filipp Gunbin <fgunbin <at> fastmail.fm>
Cc: 32950 <at> debbugs.gnu.org
Subject: Re: bug#32950: 27.0.50; Strange display bug in *Help* buffer
Date: Fri, 5 Nov 2021 17:28:39 -0700

Filipp Gunbin <fgunbin <at> fastmail.fm> writes:

> emacs -Q
> C-h f proced-sort RET
> C-x o (go to newly created *Help* buffer)
> TAB TAB (to move to `proced-sort' link)
> RET (to go to that link)
>
> Now the screen looks like in the screenshot attached.  It's Terminal app
> on macOS 10.13.6, if that matters.
>
> It looks like a new window is created, with that black line instead of a
> usual separator.  But it's still the same window.
>
> Maybe it has to do with the fact that help buffer for `proced-sort'
> contains link to the same function (or similarly name variable).

This is about how a horizontal line is displayed in the terminal.
We now have at least three different ways to display horizontal lines:

    1. The above recipe
    2. M-x customize-group RET emacs RET
    3. C-h b    [which seems buggy?]

I think we should decide which of the three are best, and replace the
others with that.

Aesthetically, I very much prefer the one in customize-group, but point
jumps to the right when you move over it, which is slightly jarring.

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