ResetOverride call from script doesn't behave as expected.

Repro step :
- Open VFX_Repro
- Select the VFX in the scene
- In Inspector, modify the exposed property "color"
- In view, click on "Reset Override button" (debug script)
- Observe the color correctly reset in view but not in inspector

Expected result :
- The "exposed" toggle returns to "false" when "ResetOverride" has been invoked.

See : https://forum.unity.com/threads/feedback-wanted-visual-effect-graph.572110/page-19#post-5300259