Added AddNewPart for synchronization of linked objects.

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -709,6 +709,15 @@ namespace OpenSim.Region.Framework.Scenes
 
         }
 
+        public void AddNewSceneObjectPart(SceneObjectPart newPart, SceneObjectGroup parentGroup)
+        {
+            //assign a local ID.
+            newPart.LocalId = AllocateLocalId();
+            //add it to SceneGraph's record.
+            m_sceneGraph.AddNewSceneObjectPart(newPart, parentGroup);
+        }
+
+
         #endregion //SYMMETRIC SYNC
 
         public ICapabilitiesModule CapsModule

OpenSim/Region/Framework/Scenes/SceneGraph.cs

@@ -2027,6 +2027,26 @@ namespace OpenSim.Region.Framework.Scenes
             return true;
         }
 
+        public void AddNewSceneObjectPart(SceneObjectPart newPart, SceneObjectGroup parentGroup)
+        {
+            SceneObjectPart[] children = parentGroup.Parts;
+
+            lock (SceneObjectGroupsByFullID)
+            {
+                SceneObjectGroupsByFullID[parentGroup.UUID] = parentGroup;
+                foreach (SceneObjectPart part in children)
+                    SceneObjectGroupsByFullID[newPart.UUID] = parentGroup;
+            }
+
+            lock (SceneObjectGroupsByLocalID)
+            {
+                SceneObjectGroupsByLocalID[parentGroup.LocalId] = parentGroup;
+                foreach (SceneObjectPart part in children)
+                    SceneObjectGroupsByLocalID[newPart.LocalId] = parentGroup;
+            }
+        }
+
+
         #endregion //SYMMETRIC SYNC
     }
 }

OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs

@@ -3546,7 +3546,8 @@ namespace OpenSim.Region.Framework.Scenes
                 //Add in new parts
                 foreach (SceneObjectPart newPart in newParts.Values)
                 {
-                    AddPart(newPart);
+                    //AddPart(newPart);
+                    AddNewPart(newPart);
                 }
 
                 //remove parts that are no longer in the group -- !!!!! need to further test how to do correct book-keeping and synchornized with other actors !!!!!!!!
@@ -3637,6 +3638,14 @@ namespace OpenSim.Region.Framework.Scenes
             return groupUpdateResult;
         }
 
+        private void AddNewPart(SceneObjectPart newPart)
+        {
+            //set the parent relationship
+            AddPart(newPart);
+
+            m_scene.AddNewSceneObjectPart(newPart, this);
+        }
+
         public void ScheduleGroupForFullUpdate_SyncInfoUnchanged()
         {
             if (IsAttachment)