bug#11242: 24.1.50; Switching to rmai view buffer

[martin rudalics]

>     If you look at the code of `other-buffer' that doesn't seem possible:
>     Both loops trigger iff
>
>           (SREF (BVAR (XBUFFER (buf), name), 0) != ' ')
>
>     so please try my recipe.
>
> What recipe?

Please put

(defun wcch ()
  (when (get-buffer-window " *message-viewer RMAIL*" t)
    (backtrace)))

(add-hook 'window-configuration-change-hook 'wcch)

in your .emacs and when it triggers post the backtrace here.

Thanks, martin