sometimes missing accidentals on note following altered unison group

Issue type

Engraving bug

Bug description

If there is a chord containing altered unison, next note should have always cautionary accidental.

Now it has only sometimes.

Steps to reproduce

1. write "unison" chord ab-a following by a
2. write "unison" chord a-a# following by a
3. see - first "a" without accidental is a, second is a#

Screenshots/Screen recordings

https://github.com/musescore/MuseScore/assets/1646034/4fbbedfd-5dd1-4e59-a047-54d9d406c50c

MuseScore Version

master

Regression

I don't know

Operating system

Ubuntu 22.04

Additional context

Actually, accidentalState is taken from last note of "unison" chord, which is always highest note, but I think correct behaviour is, next note should always have cautionary accidental.

Now user needs to add accidental manualy, but it causes, when note changes its octave, accidental remains there, which is wrong.

May be new accidentalState "none" should be used and aplied by altered unison chords, so any note would have shown "auto" accidental.