add a few extra checks for viewers animated objects support, to avoid timming issues

OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs

@@ -1710,8 +1710,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                         m_pendingCache.Remove(endPoint);
                     }
 
-                    client.CheckViewerCaps();
-
                     m_log.DebugFormat("[LLUDPSERVER]: Client created, processing pending queue, {0} entries", queue.Count);
                     // Reinject queued packets
                     while (queue.Count > 0)
@@ -1727,6 +1725,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     // circuit code to the existing child agent.  This is not particularly obvious.
                     SendAckImmediate(endPoint, uccp.Header.Sequence);
 
+                    client.CheckViewerCaps();
+
                     // We only want to send initial data to new clients, not ones which are being converted from child to root.
                     if (client != null)
                     {

OpenSim/Region/Framework/Scenes/ScenePresence.cs

@@ -2180,6 +2180,9 @@ namespace OpenSim.Region.Framework.Scenes
                 ControllingClient.MoveAgentIntoRegion(m_scene.RegionInfo, AbsolutePosition, look);
                 //m_log.DebugFormat("[CompleteMovement] MoveAgentIntoRegion: {0}ms", Util.EnvironmentTickCountSubtract(ts));
 
+                // recheck to reduce timing issues
+                ControllingClient.CheckViewerCaps();
+
                 bool isHGTP = (m_teleportFlags & TeleportFlags.ViaHGLogin) != 0;
 
                 int delayctnr = Util.EnvironmentTickCount();
@@ -4040,6 +4043,9 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                 }
 
+                // recheck to reduce timing issues
+                ControllingClient.CheckViewerCaps();
+
                 SendOtherAgentsAvatarFullToMe();
 
                 if(m_scene.ObjectsCullingByDistance)