Clear angle of labels doesn't work (1.1.1)

[Balmung]

Steps to reproduce:

1. Create a label with: "Some Text".
2. Switch to Transformation Tool.
3. Rotate to 90°.
4. Press Clear Label and confirm that the new angle will be 0°.
5. The angle is now 0°.
6. Unselect the label.
7. Select label.

It's 90° again, not 0°.