Make sure apply = false for all forced render states

jme3-core/src/main/java/com/jme3/post/PreDepthProcessor.java

@@ -60,7 +60,7 @@ public class PreDepthProcessor implements SceneProcessor {
         preDepth.getAdditionalRenderState().setPolyOffset(0, 0);
         preDepth.getAdditionalRenderState().setFaceCullMode(FaceCullMode.Back);
 
-        forcedRS = new RenderState();
+        forcedRS = RenderState.ADDITIONAL.clone();
         forcedRS.setDepthTest(true);
         forcedRS.setDepthWrite(false);
     }

jme3-core/src/main/java/com/jme3/shadow/AbstractShadowRenderer.java

@@ -94,7 +94,7 @@ public abstract class AbstractShadowRenderer implements SceneProcessor, Savable,
     protected EdgeFilteringMode edgeFilteringMode = EdgeFilteringMode.Bilinear;
     protected CompareMode shadowCompareMode = CompareMode.Hardware;
     protected Picture[] dispPic;
-    protected RenderState forcedRenderState = new RenderState();
+    protected RenderState forcedRenderState = RenderState.ADDITIONAL.clone();
     protected boolean renderBackFacesShadows = true;
     protected AppProfiler prof;
 

jme3-niftygui/src/main/java/com/jme3/niftygui/JmeBatchRenderBackend.java

@@ -453,7 +453,7 @@ public class JmeBatchRenderBackend implements BatchRenderBackend {
 
     private final Mesh mesh = new Mesh();
     private final Geometry meshGeometry = new Geometry("nifty-quad", mesh);
-    private final RenderState renderState = new RenderState();
+    private final RenderState renderState = RenderState.ADDITIONAL.clone();
 
     private FloatBuffer vertexPosBuffer;
     private FloatBuffer vertexTexCoordBuffer;

jme3-niftygui/src/main/java/com/jme3/niftygui/RenderDeviceJme.java

@@ -73,7 +73,7 @@ public class RenderDeviceJme implements RenderDevice {
     private VertexBuffer quadColor;
     private Matrix4f tempMat = new Matrix4f();
     private ColorRGBA tempColor = new ColorRGBA();
-    private RenderState renderState = new RenderState();
+    private RenderState renderState = RenderState.ADDITIONAL.clone();
     
     private Material colorMaterial;
     private Material textureColorMaterial;