Comment 36 for bug 1217230

Ah, in fact, here's a lower-level manifestation of the same problem, still on iPhone -- no nautilus or other file manager involved, it's clearly 100% a gvfs problem. Someone with a camera with a gvfs-gphoto2 mount could try to confirm whether the same issue happens with gvfs-gphoto2 as with gvfs-afc -- I suspect that's probably the case.

~ > gvfs-ls afc://e545[...]c3df/DCIM/100APPLE/
[...]
IMG_0462.JPG
IMG_0463.JPG
~ > gvfs-copy afc://e545[...]c3df/DCIM/100APPLE/IMG_0463.JPG .
Error copying file afc://e545[...]c3df/DCIM/100APPLE/IMG_0463.JPG: Operation not supported by backend
~ > ls /run/user/500/gvfs/afc:host=e545[...]c3df/DCIM/100APPLE/
[...]
IMG_0462.JPG
IMG_0463.JPG
~ > cp /run/user/500/gvfs/afc:host=e545[...]c3df/DCIM/100APPLE/IMG_0463.JPG .
[file copies successfully]