Lighting Window doesn't refresh after lighting is baked if not hovered over, Force Stop and Cancel button remains even after the baking is done

Steps to Repro:
1. Create a new project
2. Window > Rendering > Lighting Settings
3. Dock window next to the inspector, in 2 by 3 column layout
3. Disable auto-generate lighting
4. Click on generate lighting and move mouse over to another window

Actual Result:
The Force Stop and Cancel button doesn't disappear once the lighting is baked

Expected Result:
The Force Stop and Cancel button should disappear once the lighting is baked

Environment:
Windows 10 and Mac 10.14

Occurring with:
2019.2.0b5, 2019.2.0b1, 2019.2.0a4

Working with:
2019.3.0a5, 2019.2.0a3, 2018.4.2f1