Prefab bug 870581

I wish the ghostbusters exist because this one has been haunting unity since version 2.7
When I press the revert button I get this beauty and the hierarchy doesn't turn blue. Same thing when I apply this particularly recalcitrant prefab.

Code (CSharp):

1. NullReferenceException: Object reference not set to an instance of an object
2. UnityEditor.GameObjectInspector.RegisterNewComponents (System.Collections.Generic.List`1 newHierarchy, System.Collections.Generic.List`1 hierarchy) (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/GameObjectInspector.cs:409)
3. UnityEditor.GameObjectInspector.DoPrefabButtons (PrefabType prefabType, UnityEngine.GameObject go) (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/GameObjectInspector.cs:294)
4. UnityEditor.GameObjectInspector.DrawInspector () (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/GameObjectInspector.cs:229)
5. UnityEditor.GameObjectInspector.OnHeaderGUI () (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/GameObjectInspector.cs:138)
6. UnityEditor.Editor.DrawHeader () (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/Editor.cs:355)
7. UnityEditor.InspectorWindow.DrawEditor (UnityEditor.Editor editor, Int32 editorIndex, Boolean rebuildOptimizedGUIBlock, System.Boolean& showImportedObjectBarNext, UnityEngine.Rect& importedObjectBarRect) (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:1110)
8. UnityEditor.InspectorWindow.DrawEditors (UnityEditor.Editor[] editors) (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:1024)
9. UnityEditor.InspectorWindow.OnGUI () (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:359)
10. System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
11.  

 

I found a 100% repro: this happens when one component is missing