Crashes with partial lyrics lines hyphens

Issue type

Crash or freeze

Description with steps to reproduce

The order of creating repeats/notes appears to influence how this presents.

CASE 1:

1. Add a note at the start of a bar (e.g. bar 3 in a new score).
2. Create 1st and 2nd endings with the appropriate repeat barline (see video below).
3. Add a partial lyrics line hyphen to the note. NOTICE here that the 2nd ending vanishes.
4. Select the hyphen.
   MSS usually crashes here. Else, continue with step 5.
5. Change the Set to verse property from 1 to 2.
   RESULT: CRASH

CASE 2:

1. Create 1st and 2nd endings with the appropriate repeat barline.
2. Add a note at the start of the 2nd ending.
3. Add a partial lyrics line hyphen to the note. NOTICE here that the note vanishes.
4. Select and deselect the hyphen (seems to be a necessary step to reliably reproduce the crash).
5. Close the score.
   RESULT: CRASH

Supporting files, videos and screenshots

Case 1:

https://github.com/user-attachments/assets/2f756d69-88c7-4e70-961b-33a9e0a7ee00

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Case 2:

https://github.com/user-attachments/assets/af808316-318d-4c18-82a5-9b6cb0a534f3

In which versions of MuseScore Studio is this issue present?

Latest nightlies

Regression

Yes. Did not crash in 4.5.2. Partially reproducible in 4.6.0 - 4.6.5.

Operating system

Ubuntu 24.04.4 LTS

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