Steps to reproduce:
- Open IGT Navigation Tool Manager
- Create new tool storage
- Add a tool
- Click button 'Edit Tooltip' in tab 'Advanced'
- Enter y-axis rotation: -20
- Close dialog
- Click button 'Edit Tooltip' again
--> -19 degree is shown in the spin box
This may be caused by the fact, that the values of the hidden dialog are note reused. They are recomputed from the surface, see QmitkInteractiveTransformationWidget::SetGeometry