Prevent child agents from being blacklisted in the kill record.

OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs

@@ -1519,12 +1519,15 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             kill.Header.Reliable = true;
             kill.Header.Zerocoded = true;
 
+            if (m_scene.GetScenePresence(localID) == null)
+            {
                 lock (m_entityUpdates.SyncRoot)
                 {
                     m_killRecord.Add(localID);
                     OutPacket(kill, ThrottleOutPacketType.State);
                 }
             }
+        }
 
         /// <summary>
         /// Send information about the items contained in a folder to the client.