InvalidOperationException occurs on selecting resliced sprite once its bones are generated and scene view disappears on scaling docked window next to it

Steps to Repro:
1. Open attached project
2. go to project window and select atlas
3. Open sprite editor > Slice > apply
4. Open 'SampleScene' and select 'atlas' game object
5. Scale the hierarchy window docked next to scene view

Actual Result:
1. Observe that scene view disappears
2. Observe the console for errors

Occurring with:
2018.1.0b10, 2018.1.0b5

Note:
unable to check with older unity versions as packman UI is not available

Occurring on:
Windows 10 and Mac OSX 10.13

Stack Trace:
Error 1:
InvalidOperationException: Operation is not valid due to the current state of the object
System.Linq.Enumerable.First[SpriteBone] (IEnumerable`1 source)
UnityEditor.Experimental.U2D.Animation.BoneGizmo.DrawBoneGizmo (UnityEngine.Experimental.U2D.Animation.SpriteSkin skin, GizmoType gizmoType) (at C:/ProgramData/Unity/cache/packages/staging-packages.unity.com/com.unity.2d.animation@1.0.10-experimental/Editor/SpriteSkin/BoneGizmo.cs:38)
UnityEditor.Experimental.U2D.Animation.BoneGizmo.<BoneGizmo>m__0 (UnityEditor.SceneView sv) (at C:/ProgramData/Unity/cache/packages/staging-packages.unity.com/com.unity.2d.animation@1.0.10-experimental/Editor/SpriteSkin/BoneGizmo.cs:25)
UnityEditor.SceneView.CallOnSceneGUI () (at C:/buildslave/unity/build/Editor/Mono/SceneView/SceneView.cs:2605)
UnityEditor.SceneView.HandleSelectionAndOnSceneGUI () (at C:/buildslave/unity/build/Editor/Mono/SceneView/SceneView.cs:1907)
UnityEditor.SceneView.OnGUI () (at C:/buildslave/unity/build/Editor/Mono/SceneView/SceneView.cs:1744)
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)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
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:232)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:291)
UnityEditor.HostView.Invoke (System.String methodName) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:284)
UnityEditor.HostView.InvokeOnGUI (Rect onGUIPosition) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:251)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Error 2:
GUI Error: You are pushing more GUIClips than you are popping. Make sure they are balanced)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)