musescore / musescore/MuseScore

Breath marks during multimeasure rests may attach to incorrect bar following Redo

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engraving P2
Dominant language
C++
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Description

Issue type

Engraving bug (incorrect score rendering)

Description with steps to reproduce

Originally reported by @pyonpyoco here.

  1. Create an empty score with a part.
  2. In the main score: add breath marks after bars 2 and 4.
  3. Delete breath mark after b.2
  4. Undo
  5. Redo and switch to the part
    RESULT: The breath mark after b.4 is incorrectly drawn at the start of b.5.
Supporting files, videos and screenshots

https://github.com/user-attachments/assets/eced100b-a04a-4e20-8d76-57f647a1805b

In which versions of MuseScore Studio is this issue present?

Nightly main (since #33837)

Regression

No.

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

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  4. Open a pull request that references the issue number.

Assessment

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