FEM: fenics #0003038: this fixes the CellFunction type to get access to the measures correctly
FEM: fenics #0003038: this fixes the CellFunction type to get access to the measures correctly

Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master