Normal guitar bends play back as a linear sloped pitch bend, when the visual graph in Properties is exponential

Issue type

General playback bug

Description with steps to reproduce

1. Input a bend, the longer in duration and larger in range, the more obvious the issue becomes
2. Play back the bend
3. Observe the linear playback, when the properties graph shows exponential
   Ideally, the playback should match the graph shape

Supporting files, videos and screenshots

https://github.com/user-attachments/assets/2128ef24-c30b-4d9b-a8e2-908bcaa8785a

In which versions of MuseScore Studio is this issue present?

OS: Windows 11 Version 25H2 or later, Arch.: x86_64, MuseScore Studio version (64-bit): 4.7.0-260513133, revision: github-musescore-musescore-9989a50

Regression

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

Operating system

Reported on Windows 11

Additional context

Because the "Dive" item from the guitar palette has a linear graph, and the normal pitch bends have an exponential graph, these two items should reflect their own graphs, rather than both being played as linear.
Additionally, with regular pitch bends having switched to linear from exponential, it is no longer possible to get an exponential playback, and older scores with bends relying on the exponential shape will all need to be reworked.

Checklist

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• 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