Breaks and Spacers aren't copied

1. Open attached score (produced in 1.2).
2. 'Select All'.
3. 'Copy'.
4. Create 4/4 piano score.
5. 'Paste'.

Result: Breaks and Spacers aren't copied.

Using MuseScore 2.0 Nightly Build (e3d119f) - Mac 10.7.4.