bug#17769: 24.4.50; [PATCH] rcirc-omit-mode: `recenter'ing a window that does not display current-buffer.

[Eli Zaretskii]

> From: Daimrod <daimrod@gmail.com>
> Cc: 17769@debbugs.gnu.org
> Date: Fri, 13 Jun 2014 18:14:09 +0900
> 
> > This doesn't sound like the right fix to me.  Instead, the code should
> > momentarily switch to the right window, and call recenter there.
> > That's surely what the author of this code intended, AFAIU.
> 
> But the buffer might not be displayed in any window.

Then with-current-buffer is your friend, I think.