Beam properties are not remembered
Steps to reproduce:
1) Mark a part in Voice 1 with several hand-made beams
2) Change to Voice 2 and the beams are reset to automatic and not as they should.
This happens for instance if voices are to be combined like Soprano and Alto into Women. See Test.mscz, which is the result of copying "Alto" to "Women" and change to Voice 2, (And then copy "Soprano" to it, but that does not change.)
(Btw, sometimes also lines are forgotten this way, and what more?)