Deleting/changing time signature with courtesies at repeats crashes the app

[LupusCaeruleus]

Issue type

Crash or freeze

Description with steps to reproduce

1. Create a score, add a time signature and a repeat sign so that a courtesy is automatically created.
2. Try to delete or change the added time signature.
3. App crashes.

There is no problem if courtesies are turned off in the Styles settings, so the culprit is most likely the courtesy.

2025-02-22.01-32-44.mp4

Supporting files, videos and screenshots

Please see above.

What is the latest version of MuseScore Studio where this issue is present?

4.5 Beta, also present in latest nightly build

Regression

No.

Operating system

Windows 11

Additional context

No response

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible