bug#51210: Customizable other-window-for-scrolling

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: rudalics@gmx.at,  51210@debbugs.gnu.org
> Date: Thu, 27 Jan 2022 19:40:51 +0200
> 
> > It isn't beginning of buffer, it's where (beginning-of-buffer arg)
> > puts point when ARG is non-nil.  See the doc string of
> > beginning-of-buffer.
> 
> Sorry, I didn't notice it takes an argument.  Then it's strange
> that it doesnt't recenter according to recenter-top-bottom that
> uses recenter-positions.  So two most useful behaviors
> (recenter-top-bottom for beginning-of-buffer-other-window and
> no recentering for end-of-buffer-other-window) are not supported.
> Since the default can't be changed, maybe a new optional argument
> could define whether to use recenter-top-bottom, or no recenter at all.

I don't mind having a new option, but is recenter-positions really
relevant to beginning-of-buffer-other-window? why would users want to
have beginning-of-buffer-other-window recenter in non-default ways,
just because they customized recenter-positions?