setting crescendo / diminuendo lines and hairpins position to below staff doesn't 'survive' save/close/reopen
Steps to reproduce bug:
1) SATB reduced sheet
2) write 2 different voices in 1 staff (not unison)
3) set different crescendo/diminuendo for each voice
4) set 2nd voice's crescendo/diminuendo below the staff and 1st voice's crescendo/diminuendo above the same staff
5) save end exit
6) open the same file
2nd voice's crescendo/diminuendo should be placed below the staff.
But, it is not. It happens that all crescendo/dimunuendo appear above the staff.
OS: Windows 10 (10.0),
MuseScore version (64-bit): 188.8.131.5292,