"Regroup rhythms" causes AccessibilityController "Inconsistent state for item" errors

Issue type

Other type of issue

Description with steps to reproduce

1. Run MuseScore from the command line
2. Open any score (even a brand new score with one instrument)
3. Use "Regroup rhythms"

The console gives an error message for (I think) every single chord/rest in the whole piece. For a big piece it's thousands of lines of errors.

22:06:28.499 | INFO  | main_thread     | ActionsDispatcher::doDispatch | try call action: reset-groupings
22:06:28.500 | ERROR | main_thread     | AccessibilityController::stateChanged | Inconsistent state for item: "Rest Bar, Bar 1 Beat 1"
22:06:28.501 | ERROR | main_thread     | AccessibilityController::stateChanged | Inconsistent state for item: "Rest Bar, Bar 2 Beat 1"
22:06:28.501 | ERROR | main_thread     | AccessibilityController::stateChanged | Inconsistent state for item: "Rest Bar, Bar 3 Beat 1"
...

Repeating the action causes the same output again.

The same happens when calling cmd("reset-groupings") directly from within a plugin.

Supporting files, videos and screenshots

In which versions of MuseScore Studio is this issue present?

OS: macOS Sequoia (15.7.7), Arch.: arm64, MuseScore Studio version (64-bit): 4.7.4-260706075, revision: github-musescore-musescore-7688c00

Regression

I was unable to check

Operating system

macOS

Additional context

No response

Checklist

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