How to undo AssetDatabase.CreateAsset?

In an editor script I am creating a hidden asset that is stored as part of another asset:

 public static T AddAssetOfType<T>(string path, bool hide) where T:ScriptableObject {
         T item = ScriptableObject.CreateInstance<T> ();
         if (hide) {
             item.hideFlags = HideFlags.HideInHierarchy;
         }
         AssetDatabase.AddObjectToAsset (item, path);
         AssetDatabase.SaveAssets ();
         AssetDatabase.Refresh ();
         return item;
 }

At one point I'd like to undo this. So I did something like:

 var obj = AddObjectToAsset(...);
 Undo.RegisterCreatedObjectUndo(obj, "Create Entry" );

However I'm getting this error message:

Undo Created Object may not be performed on persistent or non-default hide flag objects

That's basically killer since my object is persisted AND hidden. Is there a way to undo this using the built in undo system? If not is there a way to put in some fake undo state and run some own code to undo the change?