Simultaneously offsetting multiple fingering markings produces strange result

[ma-b]

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. Create a new score
2. Add a couple of notes and apply right-hand fingering markings from the "Guitar" palette
3. Select two of the markings, go to the Properties > Appearance panel and gradually decrement their vertical offsets (using the button)

Expected behaviour: Both items move up in parallel. Actual behaviour: At some point during the process, one item suddenly changes position and starts counting its offset from zero.

I believe the root cause of this issue could be related to #22622. I'm reporting this separately here in case there is a simpler workaround that would fix simultaneous offsets, without the need to resolve #22622 completely.

Supporting files, videos and screenshots

https://github.com/user-attachments/assets/3570f65d-2d23-4e41-bc25-91730678cca9

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

OS: Windows 10 Version 2009 or later, Arch.: x86_64, MuseScore Studio version (64-bit): 4.5.2-251141402, revision: github-musescore-musescore-ac9d3bc

Regression

I was unable to check

Operating system

Windows 10

Additional context

No response

Checklist

• [x] This report follows the guidelines for reporting bugs and issues
• [x] I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• [x] I have attached all requested files and information to this report
• [x] I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible