updated tracking state logic in controller pose synchronizer

Author: StephenHodgson

Assets/MixedRealityToolkit-SDK/Features/Input/Handlers/ControllerPoseSynchronizer.cs

@@ -119,7 +119,14 @@ public virtual void OnSourceLost(SourceStateEventData eventData)
         }
 
         /// <inheritdoc />
-        public virtual void OnSourcePoseChanged(SourcePoseEventData<TrackingState> eventData) { }
+        public virtual void OnSourcePoseChanged(SourcePoseEventData<TrackingState> eventData)
+        {
+            if (eventData.SourceData != TrackingState)
+            {
+                IsTracked = eventData.SourceData == TrackingState.Tracked;
+                TrackingState = eventData.SourceData;
+            }
+        }
 
         /// <inheritdoc />
         public virtual void OnSourcePoseChanged(SourcePoseEventData<Vector2> eventData) { }
@@ -140,12 +147,6 @@ public virtual void OnSourcePoseChanged(SourcePoseEventData<MixedRealityPose> ev
                 return;
             }
 
-            if (eventData.TrackingState != TrackingState)
-            {
-                IsTracked = eventData.TrackingState == TrackingState.Tracked;
-                TrackingState = eventData.TrackingState;
-            }
-
             if (UseSourcePoseData && TrackingState == TrackingState.Tracked)
             {
                 transform.localPosition = eventData.SourceData.Position;