Enabling/Disabling "New Lighting Settings" properties do not refresh in "New Lighting Settings" window.

Steps to repro:
1. Create a new project.
2. Windows > Rendering > Lighting Settings.
3. Create a new Lighting Settings.
4. Assign to Lighting Settings > Open New Lighting Settings.
5. Enable/Disable Baked Lightmaps.

Actual Result:
Lighting Settings properties do not refresh on changing properties in "New Lighting Settings" window.

Expected Result:
Properties should be changed in Lighting Settings.

Reproducible with:
2020.1.0a14.

NOTE: "New Lighting Settings" feature is introduced in 2020.1.0a14.

Environment:
Windows 10 & Mac 10.14.