Inconsistent behaviour with dynamics and hairpins, when use parts from voices
How to reproduce bug:
Create multivoice score. Add some dynamics and hairpins to voices. Create parts. Add new dynamics and hairpins to score, or parts.
Dynamic sometimes behave as "staff dynamic", which means it is reproduced in all parts and voices, but sometimes as "voice dynamic", which means, it is reproduced to coresponding part (and vice versa).
Same with hairpins.
Here is sum of different behaiviours:
hairpin in voice 1 always behave as staff hairpin
hairpin in voice 2 always behave as voice hairpin
dynamic in voice 1 behave as voice dynamics, if is added (to score) before creating parts
dynamic in voice 1 behave as staff dynamic, if is added (to score, or part) after creating parts
dynamic in voice 2 always behave as voice dynamic