If parts are open, added title text is multiplicated in parts

[sammik]

Issue type

UX/Interaction bug (incorrect behaviour)

Bug description

If parts are open, addidng title (or subtitle, composer, lyricist) to score (or part) causes, added text is multiplicated in parts (score / other parts)

Steps to reproduce

1. open parts
2. add lyricist to score
3. in part move lyricist text - see other lyricist text is there

Screenshots/Screen recordings

title-multiplicated.mp4

MuseScore Version

master

Regression

Yes, worked in 4.1.1, broken in 4.2.0

Operating system

Linux Mint (Ubuntu 22.04)

Additional context

Adding text next (and next ...) times causes more (and more ...) multiplications.

[bkunda]

@zacjansheski pls check regression status

[zacjansheski]

Regression occured between 4.1.1 and 4.2.0