Clicking whilst selected bar with object changes causes crash

1. Open attached score (produced in 2.0).
2. Click on the tablature stave with the note.
3. Right-click the stave.
4. 'Stave Properties...'.
5. 'Advanced style properties…'.
6. 'Note Values'.
7. Change 'Minim notes:' to 'None'.
8. 'OK' twice.
9. Immediately after the menu has gone, click the bar of the other guitar twice.

Result: Crash.

Note: This can be reproduced with slight variations (e.g. performing steps 3-8 if slashed stem wasn't present, clicking the bar with note, clicking elsewhere, etc), so I attach multiple logs.

Using MuseScore 2.0 Nightly Build (70e228a) - Mac 10.7.5.