Here is a patch. image-transform-properties was not working on the
window of the current buffer, so I added a call to get-window-buffer.
In image-toggle-display-image (called from the auto-revert hook) this
was already being done, but the call to current-buffer was redundant
since it's the default, so I removed it. There are many other calls to
window-inside-pixel-edges around there but they don't seem to be
evaluated during auto-revert.

Regards
--
Carlos