Bug fix AutoSetupTwoBoneIK.cs for use with prefabs

Assets/AnimationRiggingWorkshop/Editor/TwoBoneIKAutoSetup.cs

         {
             Undo.RecordObject(constraint, "Setup mid bone for TwoBoneIK");
             constraint.data.mid = tip.parent;
+            if (PrefabUtility.IsPartOfPrefabInstance(constraint)) EditorUtility.SetDirty(constraint);
         }
 
         if (!constraint.data.root)
+            if (PrefabUtility.IsPartOfPrefabInstance(constraint)) EditorUtility.SetDirty(constraint);
         }
 
         if (!constraint.data.target)
                 t.name = constraint.gameObject.name + "_target";
                 Undo.SetTransformParent(t.transform, constraint.transform, "Set new parent");
                 target = t.transform;
+                if (PrefabUtility.IsPartOfPrefabInstance(constraint)) EditorUtility.SetDirty(constraint);
             }
             constraint.data.target = target;
         }
                 hint = t.transform;
             }
             constraint.data.hint = hint;
+            if (PrefabUtility.IsPartOfPrefabInstance(constraint)) EditorUtility.SetDirty(constraint);
         }
 
         // align target and hint to bones

Assets/AnimationRiggingWorkshop/Scenes/NinjaMegacityDemo.unity

       m_Item7:
         transform: {fileID: 0}
         weight: 0
-    m_PositionOffset: {x: 0, y: 0, z: 0}
-    m_RotationOffset: {x: 0, y: 0, z: 0, w: 1}
     m_ConstrainedPositionAxes:
       x: 1
       y: 1
       z: 1
     m_MaintainPositionOffset: 0
     m_MaintainRotationOffset: 0
-    m_SoloMode: 0
   m_SourceObjectsGUIToggle: 1
   m_SettingsGUIToggle: 1
 --- !u!1001 &386096663
       objectReference: {fileID: 0}
     - target: {fileID: 772315689, guid: 5fd80ff0c777aee40a0461cf5165b893, type: 3}
       propertyPath: m_Effectors.Array.size
-      value: 48
+      value: 49
+      objectReference: {fileID: 0}
+    - target: {fileID: 772315689, guid: 5fd80ff0c777aee40a0461cf5165b893, type: 3}
+      propertyPath: m_Effectors.Array.data[48].m_Transform
+      value: 
+      objectReference: {fileID: 1732088091}
+    - target: {fileID: 772315689, guid: 5fd80ff0c777aee40a0461cf5165b893, type: 3}
+      propertyPath: m_Effectors.Array.data[48].m_Style.shape
+      value: 
+      objectReference: {fileID: 4300000, guid: e050c2b16fe384bd994474655a4b4968, type: 2}
+    - target: {fileID: 772315689, guid: 5fd80ff0c777aee40a0461cf5165b893, type: 3}
+      propertyPath: m_Effectors.Array.data[48].m_Style.color.r
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 772315689, guid: 5fd80ff0c777aee40a0461cf5165b893, type: 3}
+      propertyPath: m_Effectors.Array.data[48].m_Style.color.a
+      value: 0.5
+      objectReference: {fileID: 0}
+    - target: {fileID: 772315689, guid: 5fd80ff0c777aee40a0461cf5165b893, type: 3}
+      propertyPath: m_Effectors.Array.data[48].m_Style.size
+      value: 0.1
+      objectReference: {fileID: 0}
+    - target: {fileID: 772315689, guid: 5fd80ff0c777aee40a0461cf5165b893, type: 3}
+      propertyPath: m_Effectors.Array.data[48].m_Visible
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: 772315689, guid: 5fd80ff0c777aee40a0461cf5165b893, type: 3}
+      propertyPath: m_Effectors.Array.data[48].m_Style.color.b
+      value: 1
       objectReference: {fileID: 0}
     m_RemovedComponents: []
   m_SourcePrefab: {fileID: 100100000, guid: 5fd80ff0c777aee40a0461cf5165b893, type: 3}
       m_Item7:
         transform: {fileID: 0}
         weight: 0
-    m_PositionOffset: {x: 0, y: 0, z: 0}
-    m_RotationOffset: {x: 0, y: 0, z: 0, w: 1}
     m_ConstrainedPositionAxes:
       x: 1
       y: 1
       z: 1
     m_MaintainPositionOffset: 0
     m_MaintainRotationOffset: 0
-    m_SoloMode: 0
   m_SourceObjectsGUIToggle: 1
   m_SettingsGUIToggle: 1
 --- !u!1001 &1296538010