Crash after undoing moving a tied note to another voice
1) New score
2) Enter two tied notes (e.g. N→ A → + →Esc)
3) Move any note (or both of them) to voice 2.
4) Undo 2 times.
First unexpected result: a tie is drawn where it shouldn't be:
5) Try to add another note (click anywhere with mouse or press e.g. Shift + E on a keyboard).
OS: Debian GNU/Linux 10 (buster), Arch.: x86_64, MuseScore version (64-bit): 3.2.0., revision: 53a5bfa
Not sure whether is should be considered a regression, in previous versions it wasn't possible to move a tied note to another voice at all. Still technically this scenario won't produce crash in version 3.1.