Index: src/Common/DelftTools.Utils/Data/EditableObjectUnique.cs
===================================================================
diff -u -r8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9 -rd505e5545e25721aee2dfb60bc2a27ab1878a0ad
--- src/Common/DelftTools.Utils/Data/EditableObjectUnique.cs	(.../EditableObjectUnique.cs)	(revision 8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9)
+++ src/Common/DelftTools.Utils/Data/EditableObjectUnique.cs	(.../EditableObjectUnique.cs)	(revision d505e5545e25721aee2dfb60bc2a27ab1878a0ad)
@@ -11,7 +11,7 @@
     /// <remarks>This IEditableObject implementation allows nested edit actions</remarks>
     /// <typeparam name="T"></typeparam>
     [Entity(FireOnCollectionChange = false)]
-    public abstract class EditableObjectUnique<T> : Unique<T>, IEditableObject
+    public abstract class EditableObjectUnique<T> : IEditableObject
     {
         private readonly Stack<IEditAction> editActions = new Stack<IEditAction>();
         private bool isEditing;