Project Upgraded to 2D Renderer & Scene upgraded to 2D Renderer options are disable in 2D Renderer.

Steps to repro:
1. Create a new Project with SRP Template.
2. Edit > Render Pipeline > Universal Render pipeline > 2D Renderer.
3. Click outside the Menu.

Actual Result:
NullReferenceException errors are thrown in the console.

Expected Result:
No errors in the console.

Reproducible in:
2020.1.0a24(79162fef2e73), 2019.3.2f1 with Package version 7.2.0.

Working fine in:
2020.1.0a24(79162fef2e73), 2019.3.2f1 with Package version 7.1.8.

Environment:
Occurring on Windows 10 Mac 10.15.

Stack trace:
NullReferenceException: Object reference not set to an instance of an object
UnityEditor.Experimental.Rendering.Universal.Light2DEditorUtility.GetRenderer2DData () (at Library/PackageCache/com.unity.render-pipelines.universal@7.2.0/Editor/2D/Light2DEditorUtility.cs:103)
UnityEditor.Experimental.Rendering.Universal.Light2DEditorUtility.IsUsing2DRenderer () (at Library/PackageCache/com.unity.render-pipelines.universal@7.2.0/Editor/2D/Light2DEditorUtility.cs:115)
UnityEditor.Experimental.Rendering.Universal.Renderer2DUpgrader.UpgradeSceneTo2DRendererValidation () (at Library/PackageCache/com.unity.render-pipelines.universal@7.2.0/Editor/2D/Renderer2DUpgrader.cs:95)