Gigantic spacing appears in measures with rehearsal marks after change staff distance

This is a juicy one.

1. Open Huron_River_Andante.mscz with nightly build 565d5c5.
2. Style > General… > Page, decrease staff distance, increase again, OK

Result:

The more times you repeat the process, the crazier it becomes:

And woe unto you if you attempt to undo: #110926: Crash on undo/redo after changing staff distance