Nifty GUI: call mesh.updateCounts() after updating batch content to fix StatsView displaying wrong values

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10886 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/niftygui/com/jme3/niftygui/JmeBatchRenderBackend.java

@@ -451,6 +451,7 @@ public class JmeBatchRenderBackend implements BatchRenderBackend {
       renderManager.setForcedRenderState(renderState);
 
       material.setTexture("ColorMap", textureAtlas);
+      mesh.updateCounts();
       material.render(meshGeometry, renderManager);
       renderManager.setForcedRenderState(null);
     }