Editor crashes when a Rigidbody having unapplied joint dependency is removed from prefab. Refer the attached video

Steps to reproduce:
1) Create a new project
2) Create a Cube. Drag to Project to maka a prefab
3) In Hierarchy, Select Cube > Add Configurable Joint > Apply Rigidbody to prefab
4) In Project, Select Cube > Remove Rigidbody

Actual result: Editor Crashes

Expected Result: Rigidbody should not be removed if it is a dependency of joint

Occurring on: 2020.1.0a17, 2019.3.0f5 (fe220cd6911a), 2019.2.14f1, 2019.1.14f1, 2018.4.13f1

Environment: Both Windows and Mac

========== OUTPUTTING STACK TRACE ==================

0x00007FF63E286E65 (Unity) Unity::ConfigurableJoint::Create
0x00007FF63CAA60DB (Unity) AwakeFromLoadQueue::InvokeAwakeFromLoad
0x00007FF63CA9F891 (Unity) AwakeFromLoadQueue::AwakeFromLoad
0x00007FF63D558A70 (Unity) GameObject::ActivateAwakeRecursively
0x00007FF63D5592E4 (Unity) GameObject::AwakeFromLoad
0x00007FF63CAA60DB (Unity) AwakeFromLoadQueue::InvokeAwakeFromLoad
0x00007FF63CA9F891 (Unity) AwakeFromLoadQueue::AwakeFromLoad
0x00007FF63C6EF7CD (Unity) MergePrefabInstances
0x00007FF63C6EE2E8 (Unity) MergeAllPrefabInstancesInScenes
0x00007FF63C6ECE0A (Unity) MergeAllPrefabInstances
0x00007FF63CBD479D (Unity) AssetHotreload
0x00007FF63CC889BA (Unity) RefreshInternalV2
0x00007FF63CC8AFE1 (Unity) StopAssetImportingV2
0x00007FF63CBBB3AD (Unity) AssetDatabase::StopAssetImporting
0x00007FF63C5D3284 (Unity) MiscContextMenus::Execute
0x00007FF63BF98B1C (Unity) MenuController::ExecuteMenuItem
0x00007FF63CB2DADD (Unity) ShowDelayedContextMenu
0x00007FF63CB3D17F (Unity) GUIView::OnInputEvent
0x00007FF63C129B5C (Unity) GUIView::ProcessInputEvent
0x00007FF63CB3434D (Unity) GUIView::DoPaint
0x00007FF63CB3FB5D (Unity) GUIView::RepaintAll
0x00007FF63C1FD888 (Unity) Application::TickTimer
0x00007FF63CB3C0F0 (Unity) MainMessageLoop
0x00007FF63CB45E7A (Unity) WinMain
0x00007FF63FABC572 (Unity) __scrt_common_main_seh
0x00007FF921A57BD4 (KERNEL32) BaseThreadInitThunk
0x00007FF9233CCED1 (ntdll) RtlUserThreadStart

========== END OF STACKTRACE ===========