Fixed the sumation of the the unique number of primtivesets and vertices in the scene Stats collect

src/osgViewer/ViewerBase.cpp

@@ -657,6 +657,7 @@ void ViewerBase::renderingTraversals()
             {
                 osgUtil::StatsVisitor statsVisitor;
                 sceneRoot->accept(statsVisitor);
+                statsVisitor.totalUpStats();
                 
                 unsigned int unique_primitives = 0;
                 osgUtil::Statistics::PrimitiveCountMap::iterator pcmitr;