Reset functionality doesn't work for the "Contribute Global Illumination" Property under the MeshRenderer

On resetting the MeshRenderer component, Contribute Global Illumination property is not getting set to the default value. refer attached video

Steps to repro:
1. Open a new project.
2. Create a cube game object
3. Change "Contribute Global Illumination" Property
4. Reset MeshRenderer component.

Actual Result:
"Contribute Global Illumination" Property from MeshRenderer component is not resetting.

Expected Result:
"Contribute Global Illumination" Property from MeshRenderer component gets reset.

Note:
"Contribute Global Illumination" property was introduced in 2019.2.0a3

Occurring on:
2020.2.0a9, 2020.1.0b7, 2019.3.10f1, 2019.2.0a3

Environment:
Windows 10 and macOS 10.14