Elements improperly positioned when changing tablature line amount

1. Create 'Acoustic Guitar (nylon)' score with 'Tab. 6-str full' staff type.
2. 'General'>'Staff Types...'.
3. 'Tab. 6-str full'.
4. Reduce the amount of lines.
5. 'OK'.

Result: The elements (e.g. time signature and bar number) are improperly positioned.

Using MuseScore 2.0 Nightly Build (c1e2cb3) - Mac 10.7.5.