bug#8007: get black square instead of image if one has moved the image

[jidanni]

Sometimes after viewing a JPG, then moving it to another directory, then
hitting v there to view it again, one gets
  Not using View mode because the major mode is special
  Cannot find image file `/var/tmp/20110208pix/DSCN3328.JPG'
Of course, because we already moved it, but for some reason you don't
keep track of moves of images as well as you do for text files, so all
we see is a black square. However it is hard to predict what files this
will happen on, so I can't give you an exact case.o
emacs-snapshot version 1:20110128-1
By the way, this all would _not_ be a problem, if you fellows would
kindly remove the buffer after one hits q as I have mentioned elsewhere.

Here I can give you an exact scene:
$ ls
DSCN3319.JPG  DSCN3320.JPG  DSCN3321.JPG  leg  panarai  picass
$ emacs -q .
SPC v q SPC v q C-x C-b
See those buffers remaining there?
Why don't you kill them like you do for other files upon q?
Do you want emacs memory filling up with JPGs?