bug#11242: 24.1.50; Switching to rmai view buffer

[martin rudalics <rudalics@gmx.at>]

 >     which calls `mail-bury' where we have two options to show a buffer whose
 >     name starts with a space, namely
 >
 >     (defun mail-bury (&optional arg)
 >        ...
 > 	 (bury-buffer (current-buffer)) <---------- HERE
 > 	 ...
 > 	   (switch-to-buffer newbuf)))) <----------- OR HERE
 >
 > It's neither one.  It's done by this code.
 >
 >     ;; If there is an Rmail buffer, return to it nicely
 >     ;; even if this message was not started by an Rmail command.
 >     (unless return-action
 >       (dolist (buffer (buffer-list))
 > 	(if (eq (buffer-local-value 'major-mode buffer) 'rmail-mode)
 > 	    (setq return-action `(rmail-mail-return ,newbuf)))))

Maybe.  But how can you be sure that `bury-buffer' has no effect?  Do
you have a buffer in rmail-mode at that time?  Is `rmail-mail-return'
definitely called?  Is NEWBUF really a buffer starting with a space?

martin