Added flag to control overwriting of non flat manifold ids.

diff --git a/source/grid/grid_tools.cc b/source/grid/grid_tools.cc
index 1b5939f12c659b8815322443c702837ac5d41dcc..7aa180cbffaab34337f38b5c838efea47b603cb3 100644 (file)
--- a/source/grid/grid_tools.cc
+++ b/source/grid/grid_tools.cc
@@ -3775,6 +3775,7 @@ namespace GridTools
     std::vector<std::set<types::manifold_id>> manifold_ids(size + 1);
     std::vector<unsigned int>                 backup;
     tria.save_user_indices(backup);
+    tria.clear_user_data();
 
     unsigned next_index = 1;
     for (auto cell : tria.active_cell_iterators())