Pressing Shift key does not display Original Photo if previously externally-edited
Submitted by Saroumane
From any checkerboard view, double-click a photograph.
On the photo view, secondary-click and, in the context menu, choose Open With External Editor.
In the external editor, make one or more easily visible changes and save them.
Return to Shotwell, and notice that it (correctly) shows the modified version of the photograph.
Press Shift and observe the results.
Notice that Shotwell doesn't display the unmodified version. (Never. Even after exiting Shotwell and reloading)
It's a more "severe" version of bug 717413 which was supposed to be fixed 7 months ago.