[Trunk] Bar featuring multi-voice that expands/contracts after moving note in chord causes the final note(s) to appear defective

1. Open score .
2. In the second bar (excluding the count of anacrusis), drag a note in a chord next to another note (the notes move to each side of the beam to avoid a cluster).

Result: A move that causes the bar to expand: The final notes in the bar become partially visible.

3. Drag a note away from another note (notice the notes move to one side of the beam).

Result: A move that causes the bar to contract: The final notes in the bar have a doubling effect.

Discussion: Can't reproduce in another bar - having multi-voice maybe the cause. It only happens until you let go of the mouse.

Using MuseScore 2.0 Nightly Build (4938) - Mac 10.6.8.