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

From: Stefan Monnier <[email-masked]>
Date: Wed, 16 Feb 2011 09:40:23 -0500

>> >  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.

Even if it's set to `ask'?
As for the actual fix, maybe require-final-newline should be ignored
when the encoding is `binary'?

        Stefan