Arepeggio on chord with grace notes causes render assert

Issue type

Crash or freeze

Description with steps to reproduce

1. Open the attached graceArps.mxl file.
2. Latest main branch asserts in ArpeggioRenderer::doRender here (currently line 87):

    const Arpeggio* arpeggio = chord->arpeggio();
    IF_ASSERT_FAILED(arpeggio) {
        return;
    }

Supporting files, videos and screenshots

graceArps.mxl.zip

In which versions of MuseScore Studio is this issue present?

Current main branch at c58f62a02673fc4adbc8f1f514d4d16e01fd58bf

Regression

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

Operating system

macOS 14.7.8

Additional context

The test file provided is a musicxml file, but I do not believe the issue is in the import. This was just the easiest way for me to create a test file. I am seeing the same problem on my mnx importer in a different branch, and the LLM is saying:

The bug appears to be in GraceChordCtx::buildCtx(): grace-note rendering contexts inherit the principal chord’s commonArticulations, including arpeggios. This can cause ArpeggioRenderer to be invoked for a grace chord that does not own an arpeggio.

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