bug#8047: 23.2.94; Auto image mode breaks C-x C-w

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: 8047@debbugs.gnu.org
> Date: Tue, 15 Feb 2011 18:35:04 -0500
> 
> Eli Zaretskii wrote:
> 
> >  emacs -Q
> >  C-x C-f FOO.png RET  (or any other image file)
> >  C-x C-w BAR.png RET
> >
> >    => save-buffer: Text is read-only
> 
> I don't see this in current emacs-23 or trunk on GNU/Linux.

Set require-final-newline non-nil, and you will.