Fix new LSBody updating bugs

Author: nibsbin

Core/Simulation/Grid/Utility/Tools/Blocker/Blocker.cs

@@ -19,7 +19,7 @@ protected override void OnLateInitialize()
  {
  base.OnInitialize();
 
- CachedBody = this.GetComponent<LSBody> ();
+CachedBody = this.GetComponent<UnityLSBody> ().InternalBody;
 
  if (this.BlockPathfinding) {
  const long gridSpacing = FixedMath.One;

Core/Simulation/Physics/Core/Legacy/Editor/LegacyEditorLSBody.cs

@@ -52,7 +52,7 @@ void ReplaceLegacy ()
 var legacy = fab.GetComponent<LSBody> ();
 legacy.Replace ();
 DestroyImmediate (legacy);
-PrefabUtility.ReplacePrefab(fab, source);
+PrefabUtility.MergeAllPrefabInstances(source);
 GameObject.DestroyImmediate(fab);
 }
 

Core/Simulation/Physics/Core/UnityLSBody.cs

@@ -19,6 +19,8 @@ public void Initialize(Vector3d StartPosition, Vector2d StartRotation, bool isDy
 {
 if (_internalBody.IsNull())
 _internalBody = new LSBody();
+InternalBody.transform = transform;
+InternalBody.Reset();
 InternalBody.Initialize (StartPosition,StartRotation,isDynamic);
 }