Crash on score created from template containing slurs

[MarcSabatella]

Issue type

Crash or freeze

Bug description

A score created from a template containing slurs will crash on editing

Steps to reproduce

1. save and extra the attached score to your Templates folder
2. create score from that template, all default setting
3. Ctrl+A to select all

Result: crash

Screenshots/Screen recordings

No response

MuseScore Version

OS: Debian GNU/Linux 11 (bullseye), Arch.: x86_64, MuseScore version (64-bit): 4.2.0-233521125, revision: github-musescore-musescore-eb8d33c

Regression

Yes, this used to work in a previous version of MuseScore 4.x

Operating system

Debian 11

Additional context

The score itself is nothing special - just a mostly empty file created from the Treble template. It contains just two notes - and a slur. Delete the slur from the score and resave to your Templates folder, now you can create scores from it safely. At least in my initial tests, it's that simple - any template containing a slur will create a score that crashes almost immediately.

[MarcSabatella]

Forgot the file - but it really is just two notes with a slur...

slur.zip

[Jojo-Schmitz]

Came up in https://musescore.org/en/node/358086

[Jojo-Schmitz]

Workaround: directly after having created the score, save it, close, reopen