ArgumentNullException thrown on selecting "Strip All ProBuilder Scripts in Scene" OR "Strip ProBuilder Script in Selection" Actions from "Tools" menu when "New Poly Shape" GameObject is created in Scene View, Refer attached video.

Steps to repro:
1. Create a new project.
2. Window > Package Manager > ProBuilder > Install
3. Tools > ProBuilder > ProBuilder Window
4. Create a "New Poly Shape"
5. Tools > ProBuilder > Actions > Strip All ProBuilder Scripts in Scene OR Strip ProBuilder Script in Selection

Actual Result:
ArgumentNullException thrown on "Strip All ProBuilder Scripts in Scene" action is performed with the "New Poly Shape" GameObject

Expected Result:
"Strip All ProBuilder Scripts in Scene" OR "Strip ProBuilder Script in Selection" actions are performed gracefully

Occurring on:
2020.2.0a9, 2020.1.0b7, 2019.3.12f1, 2019.2.13f1, 2019.1.11f1, 2018.4.14f1

Package found version: preview.8 - 4.3.0, 4.2.3, 4.2.1, 4.1.0, 4.0.2, 3.0.0

Environment:
Windows10 and macOS 10.14

Stack trace:
ArgumentNullException: Value cannot be null.
Parameter name: mesh
UnityEngine.ProBuilder.MeshOperations.AppendElements.CreateShapeFromPolygon (UnityEngine.ProBuilder.ProBuilderMesh mesh, System.Collections.Generic.IList`1[T] points, System.Single extrude, System.Boolean flipNormals, System.Collections.Generic.IList`1[T] holePoints) (at Library/PackageCache/com.unity.probuilder@4.3.0-preview.8/Runtime/MeshOperations/AppendElements.cs:380)
UnityEngine.ProBuilder.MeshOperations.AppendElements.CreateShapeFromPolygon (UnityEngine.ProBuilder.ProBuilderMesh mesh, System.Collections.Generic.IList`1[T] points, System.Single extrude, System.Boolean flipNormals) (at Library/PackageCache/com.unity.probuilder@4.3.0-preview.8/Runtime/MeshOperations/AppendElements.cs:244)
UnityEngine.ProBuilder.MeshOperations.AppendElements.CreateShapeFromPolygon (UnityEngine.ProBuilder.PolyShape poly) (at Library/PackageCache/com.unity.probuilder@4.3.0-preview.8/Runtime/MeshOperations/AppendElements.cs:220)
UnityEditor.ProBuilder.PolyShapeEditor.RebuildPolyShapeMesh (System.Boolean vertexCountChanged) (at Library/PackageCache/com.unity.probuilder@4.3.0-preview.8/Editor/EditorCore/PolyShapeEditor.cs:226)
UnityEditor.ProBuilder.PolyShapeEditor.SetPolyEditMode (UnityEngine.ProBuilder.PolyShape+PolyEditMode mode) (at Library/PackageCache/com.unity.probuilder@4.3.0-preview.8/Editor/EditorCore/PolyShapeEditor.cs:212)
UnityEditor.ProBuilder.PolyShapeEditor.OnDisable () (at Library/PackageCache/com.unity.probuilder@4.3.0-preview.8/Editor/EditorCore/PolyShapeEditor.cs:81)