License notice text does not disappear

[rafael.luebeck (Rafael)]

Steps required to reproduce

1. Launch unregistered version of Aspect®.
2. License notice text: “Änderungen werden nicht gespeichert!” appears on bottom left.
3. Insert a valid license file via the about dialog

Observed behavior

4. License notice text remains.

Expected behavior

4. License notice text disappears
   or
5. About dialog asks for program restart

[Soenke (Sönke Ludwig)]

Tracked internally as #505 and will be fixed as part of the next release.