bug#10144: 24.0.91; `pop-up-frames' with dedicated windows is broken: `C-x C-f'

[Stefan Monnier]

> emacs -Q
> C-x d some-dir
> M-x set-variable pop-up-frames t
> (set-window-dedicated-p (selected-window) t)
> RET ; on some file name

> In Emacs 24 you get the error "Cannot switch...".

In Emacs-24 and Emacs-21 and Emacs-22.

> In previous releases the chosen file is visited in another frame.

You mean in Emacs-23 only.

> Dedicated windows should be primarily about making Emacs use a different
> window/frame.  They should not just prevent showing the file altogether, by
> raising an error.

If the user uses find-file rather than find-file-other-window, she
presumably knows what she's doing.


        Stefan