compute num-vertices in topology update

Author: JSchoeberl

libsrc/meshing/hprefinement.cpp

@@ -1500,7 +1500,7 @@ namespace netgen
 	  }
 	PrintMessage(5, " Start with Update Topology ");
 	mesh.UpdateTopology();
-        mesh.ComputeNVertices();
+        // mesh.ComputeNVertices();
 	PrintMessage(5, " Mesh Update Topology done ");
 
 	act_ref++; 

libsrc/meshing/meshclass.cpp

@@ -7210,6 +7210,7 @@ namespace netgen
                                NgTracer tracer)
   {
     static Timer t("Update Topology"); RegionTimer reg(t);
+    ComputeNVertices();
     topology.Update(tm, tracer);
     (*tracer)("call update clusters", false);
     clusters->Update();