diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index df08074ed9..0dc8f7bc5a 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -195,6 +195,8 @@ namespace OpenSim.Region.Framework.Scenes
             get { return m_hasGroupChanged; }
         }
 
+        public bool TemporaryInstance = false;
+
         private bool m_groupContainsForeignPrims = false;
 
         /// <summary>
@@ -3294,9 +3296,8 @@ namespace OpenSim.Region.Framework.Scenes
 
             // Now that we've aquired all of the old SOG's parts, remove the old SOG from the scene.
             m_scene.UnlinkSceneObject(objectGroup, true);
-            objectGroup.IsDeleted = true;
-
-            objectGroup.m_parts.Clear();
+            objectGroup.m_parts.Clear(); // do not dispose the parts moved to new group
+            objectGroup.Dispose();
 
             // Can't do this yet since backup still makes use of the root part without any synchronization
 //            objectGroup.m_rootPart = null;
diff --git a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
index eb31d552aa..9b0744e1f5 100644
--- a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
+++ b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
@@ -420,6 +420,8 @@ namespace OpenSim.Region.Framework.Scenes
                     m_log.ErrorFormat("[UUID GATHERER]: Failed to get part - {0}", e);
                 }
             }
+            if(sceneObject.TemporaryInstance)
+                sceneObject.Dispose();
         }
 
         /// <summary>
@@ -782,14 +784,20 @@ namespace OpenSim.Region.Framework.Scenes
             if (CoalescedSceneObjectsSerializer.TryFromXml(xml, out coa))
             {
                 foreach (SceneObjectGroup sog in coa.Objects)
+                {
+                    sog.TemporaryInstance = true;
                     AddForInspection(sog);
+                }
             }
             else
             {
                 SceneObjectGroup sog = SceneObjectSerializer.FromOriginalXmlFormat(xml);
 
                 if (null != sog)
+                {
+                    sog.TemporaryInstance = true;
                     AddForInspection(sog);
+                }
             }
         }