MPO: refresh MPOs on Spatial.deepClone()

jme3-core/src/main/java/com/jme3/scene/Node.java

@@ -251,15 +251,14 @@ public class Node extends Spatial {
         if ((refreshFlags & RF_LIGHTLIST) != 0){
             updateWorldLightList();
         }
-
-        if ((refreshFlags & RF_MATPARAM_OVERRIDE) != 0) {
-            updateMatParamOverrides();
-        }
         if ((refreshFlags & RF_TRANSFORM) != 0){
             // combine with parent transforms- same for all spatial
             // subclasses.
             updateWorldTransforms();
         }
+        if ((refreshFlags & RF_MATPARAM_OVERRIDE) != 0) {
+            updateMatParamOverrides();
+        }
 
         refreshFlags &= ~RF_CHILD_LIGHTLIST;
         if (!children.isEmpty()) {

jme3-core/src/main/java/com/jme3/scene/Spatial.java

@@ -207,9 +207,8 @@ public abstract class Spatial implements Savable, Cloneable, Collidable, Cloneab
         localLights = new LightList(this);
         worldLights = new LightList(this);
 
-        localOverrides = new ArrayList<MatParamOverride>();
-        worldOverrides = new ArrayList<MatParamOverride>();
-
+        localOverrides = new ArrayList<>();
+        worldOverrides = new ArrayList<>();
         refreshFlags |= RF_BOUND;
     }
 
@@ -1469,6 +1468,7 @@ public abstract class Spatial implements Savable, Cloneable, Collidable, Cloneab
         // the transforms and stuff get refreshed.
         clone.setTransformRefresh();
         clone.setLightListRefresh();
+        clone.setMatParamOverrideRefresh();
 
         return clone;
     }
@@ -1624,9 +1624,9 @@ public abstract class Spatial implements Savable, Cloneable, Collidable, Cloneab
 
         localOverrides = ic.readSavableArrayList("overrides", null);
         if (localOverrides == null) {
-            localOverrides = new ArrayList<MatParamOverride>();
+            localOverrides = new ArrayList<>();
         }
-        worldOverrides = new ArrayList<MatParamOverride>();
+        worldOverrides = new ArrayList<>();
 
         //changed for backward compatibility with j3o files generated before the AnimControl/SkeletonControl split
         //the AnimControl creates the SkeletonControl for old files and add it to the spatial.