Adapt test that explicitly uses cell manifolds

diff --git a/source/grid/grid_generator.cc b/source/grid/grid_generator.cc
index 61eb2566dd76938f8d9410ad193c1adb12ee883b..53bdfcfb50fda39fc9d291e0a5beeea54de12ad6 100644 (file)
--- a/source/grid/grid_generator.cc
+++ b/source/grid/grid_generator.cc
@@ -3420,10 +3420,8 @@ namespace GridGenerator
                    min_line_length(cylinder_tria)) /
           2.0;
 
-        GridGenerator::merge_triangulations(tria_without_cylinder,
-                                            cylinder_tria,
-                                            tria,
-                                            tolerance);
+        GridGenerator::merge_triangulations(
+          tria_without_cylinder, cylinder_tria, tria, tolerance, true);
       }
 
     // now set manifold ids: