Multimeasure rests causes crash when using Realize Chord Symbols feature

[cadiz2]

Issue type

Crash or freeze

Bug description

The title sums the problem

Steps to reproduce

1. Create new score, 6 measures, with the third measure containing a Chord symbol, and a filled last measure.
2. Press "M" for enabling multimeasure rests.
3. Save/Close/Reload
4. Select All
5. Menu Tools -> Realize Chord Symbols

Result: crash

Screenshots/Screen recordings

MuseScore Version

MuseScore version (64-bit): 4.2.1-240230937, revision: github-musescore-musescore-d757433

Regression

Yes. Works with 3.6.2. I don't know for versions 4.0. or 4.1 (or 4.2.0)

Operating system

Windows10

Additional context

No crash if the filled last measure is removed. And of course if multimeasure rests are disabled.

Related post on the forum: https://musescore.org/en/node/360966

[Jojo-Schmitz]

Works in 4.1.1, crashes in 4.2.0 and 4.2.1, so a 4.2 regression

[Jojo-Schmitz]

Crashes with 3.6.2 too No it does not.

But it does when there is no note in the measure with the chord symbol