orbiter poster editing UI semi-broken

[loroku]

When I place a poster in the orbiter, I can select a picture and then adjust its position.  However, if I hit "Exit" to leave the editing screen, the position of the picture isn't saved.  It saves the picture selection and filter, but not the horizontal/vertical placement (I didn't try the scaling) - in fact, it defaults to the far left side of the image.  If I hit "escape" to leave the editing screen, it saves all settings normally.