From ea549b3818d556acf64687bae705a7a063c20ddc Mon Sep 17 00:00:00 2001
From: Timo Heister <timo.heister@gmail.com>
Date: Mon, 27 May 2013 12:46:51 +0000
Subject: [PATCH] fill new copy_indices even more correct

git-svn-id: https://svn.dealii.org/trunk@29643 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/source/multigrid/mg_transfer_prebuilt.cc | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/deal.II/source/multigrid/mg_transfer_prebuilt.cc b/deal.II/source/multigrid/mg_transfer_prebuilt.cc
index 31e5ac4837..fa73027ff0 100644
--- a/deal.II/source/multigrid/mg_transfer_prebuilt.cc
+++ b/deal.II/source/multigrid/mg_transfer_prebuilt.cc
@@ -266,18 +266,18 @@ void MGTransferPrebuilt<VECTOR>::build_matrices (
               &&  level_cell->level_subdomain_id()!=mg_dof.get_tria().locally_owned_subdomain())
             continue;
 
-          // get the dof numbers of
-          // this cell for the global
-          // and the level-wise
+          // get the dof numbers of this cell for the global and the level-wise
           // numbering
           level_cell->get_dof_indices (global_dof_indices);
           level_cell->get_mg_dof_indices (level_dof_indices);
 
-          // ignore dofs that
-          // 1. are not locally owned
-          // 2. are constrained at a refinement edge
           for (unsigned int i=0; i<dofs_per_cell; ++i)
             {
+              // we need to ignore if the DoF is on a refinement edge (hanging node)
+              if (mg_constrained_dofs != 0
+                  && mg_constrained_dofs->at_refinement_edge(level, level_dof_indices[i]))
+                continue;
+
               unsigned int global_idx = globally_relevant.index_within_set(global_dof_indices[i]);
               //skip if we did this global dof already (on this or a coarser level)
               if (dof_touched[global_idx])
-- 
2.39.5