GNU bug report logs - #37848
27.0.50; hl-line and line-numbers out of sync

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Message #14 received at 37848 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Andrey Orst <andreyorst <at> gmail.com>
Cc: 37848 <at> debbugs.gnu.org
Subject: Re: bug#37848: 27.0.50; hl-line and line-numbers out of sync
Date: Mon, 21 Oct 2019 13:49:43 +0300

> From: Andrey Orst <andreyorst <at> gmail.com>
> Date: Mon, 21 Oct 2019 13:24:11 +0300
> Cc: 37848 <at> debbugs.gnu.org
> 
> > The line-number display has nothing to do with this, it works
> > correctly in this case.
> 
> It may work correctly, but I the issue is with the fact that line
> number and hl-line are out of sync.

More accurately, hl-line's overlay is out of sync with the window-point.

> Can I prevent this?

It's a bug in hl-line that needs to be fixed.

The display engine runs pre-redisplay-function for the window in this
case, so perhaps hl-line could install its hook there and fix its
overlay when it is called.

Patches are welcome.

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