Nautilus / Image Viewer: Disable Image Auto-Rotate?

[heftigrat]

Hope this isn't a re-post of an old thread, but I didn't find anything on this from a quick search. Anyway, I've noticed in Gnome pretty much all applications auto-rotate images when viewing, but leave the original image data intact. This may sound silly, but when I want to post pictures on, for instance, Facebook they upload as the picture was originally taken. So, if I took a picture with the camera flipped sideways it appears upright in Nautilus and the two image viewers I have installed, but when I upload the picture it appears to be flipped on its side. Does anyone know how to disable the auto-rotate when viewing feature? Thanks in advance!