bug#57466: 29.0.50; *Messages* buffer stops following after `kill-buffer'

[Eli Zaretskii]

> Date: Sun, 28 Aug 2022 19:04:25 +0000
> From:  laslydone via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
>   What happened:
> When you `kill-buffer' on *Messages*, after it remakes itself point no
> longer follows output.
> 
>   To reproduce:
> $ emacs -Q
> C-x b
> *Messages* <RET>
> C-x 2
> C-x b
> test <RET>
> C-x k
> *Messages* <RET>
> C-x b
> *Messages* <RET>
> C-x o
> ; You should now be back in the test buffer
> C-n C-p C-n C-p
> ; Run ^this till the last line in *Messages* is off screen.
> ; It no longer follows output.

Thanks, I hope I fixed this now on the master branch.