[Trunk] Cannot go beyond repeat marks during skip playback

1. Open score (credit to Bill Watkins).
2. Play.
3. Hold 'right' key.

Result: Once the repeat is reached, the score jumps elsewhere and plays from the beginning (infinitely, it seems). I'm not sure what the behaviour should be (play repeats or not).

Using MuseScore 2.0 nightly build (4233) - Mac 10.6.7.