Cannot call PDELab::adapt_grid on Experimental::GridFunctionSpace

The compiler message is

/home/sander/dune/dune-pdelab/dune/pdelab/adaptivity/adaptivity.hh:639:11: error: ‘class Dune::PDELab::Experimental::GridFunctionSpace<Dune::Functions::DefaultGlobalBasis<Dune::Functions::PQkNodeFactory<Dune::GridView<Dune::DefaultLeafGridViewTraits<const Dune::YaspGrid<2> > >, 1, Dune::Functions::FlatMultiIndex<long unsigned int> > >, Dune::BlockVector<Dune::FieldVector<double, 1> >, Dune::PDELab::ConformingDirichletConstraints>’ has no member named ‘update’
   gfs.update(true);

In !237 (merged) I extended testdunefunctionsgfs.cc to trigger the issue.