Subject: bug#51757: 27.2; [patch] man.el : wait for all man(1) output to be buffered before fontifying

From: Eli Zaretskii <[email-masked]>
Date: Tue, 16 Nov 2021 05:28:41 +0200

> From: Dan Čermák <[email-masked]>
> Date: Tue, 16 Nov 2021 00:06:07 +0100
> 
> I have tried this with emacs -Q and I can reproduce this issue on Fedora
> 34 as well.
> 
> Would anyone have an idea what fixed this and whether that change can be
> backported to Emacs 27.2?

Try looking at commits 495b33bb385 and f9464020d4 in Emacs Git
repository.