Pickup measures show wrong rests when the Actual duration is modified

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. New score for Flute, Time signature 4/4, with a pickup measure (1/4) created with the Wizard.
2. Create two more incomplete measures (Actual duration : 1/4 and 1/8) in the following measures

Expected result: display of a quarter rest (as when creating the score) and a 8th rest

• Works as expected with 4.3.2
• Malfunctions as of version 4.4.0 (See GIF below)

Supporting files, videos and screenshots

What is the latest version of MuseScore Studio where this issue is present?

4.4.0

Regression

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

Operating system

Windows 10

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

Reproduce the issue in MuseScore Studio 4.4.0 using the reported Flute score, 4/4 time signature, 1/4 pickup measure, and following measures with Actual durations of 1/4 and 1/8. Compare the displayed rests with version 4.3.2; done means the quarter and eighth rests remain correct after changing Actual duration.