Expression default values not working for Vogen singers

[DSP-8192]

Acknowledgement

• [x] I have read Getting-Started and FAQ

🐛 Describe the bug

Default values of expressions have no effects on rendering results of Vogen singers. For example, it can be seen from the two screenshots below that the same waveforms are generated with different default values of dynamics (curve) (-200 for the upper one and 80 for the lower one)

Explains how to reproduce the bug

1. Create a new track with a Vogen singer
2. Draw some notes on that track
3. Modify default values of any expressions.

OS & Version

Windows 11

Logs

08/20/2022 23:54:04 +01:00 : Information : undoGroup started 08/20/2022 23:54:04 +01:00 : Information : ExecuteCmd Configure expressions 08/20/2022 23:54:04 +01:00 : Information : undoGroup ended 08/20/2022 23:54:04 +01:00 : Information : SchedulePreRender 08/20/2022 23:54:04 +01:00 : Information : Publish notification Pre-render notification. 08/20/2022 23:54:04 +01:00 : Information : Publish notification Phonemized 08/20/2022 23:54:04 +01:00 : Information : Publish notification Phonemized 08/20/2022 23:54:04 +01:00 : Error : Part rendered. not on main thread 08/20/2022 23:54:04 +01:00 : Information : Publish notification Part rendered.