Cropping handles in portrait images do not match

[Jakob Dunning]

Binary package hint: f-spot

F-Spot 0.6.1.5-2ubuntu7
Ubuntu 10.04.1 LTS, Lucid Lynx
Canon EOS 300D

When I initially want to crop a photo in portrait mode, I draw a selection.
When I try to adjust the size of the selection with the handles on each side, I notice that:

the left handle is controlling the bottom border
the top handle is controlling the left border
the right handle is controlling the top border
the bottom handle is controlling the right border

I tried to rotate the image but no change. Rotating another image from my small compact (Samsung NV8) did the trick though.
I figure that when the photo got rotated according to EXIF data, the handles didn't.

After cropping the photo once, the problem disappeared.