From: Timo Heister <timo.heister@gmail.com>
Date: Sun, 13 Aug 2017 22:13:34 +0000 (-0600)
Subject: reset the CopyData object
X-Git-Tag: v9.0.0-rc1~1271^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2549223c1b3125b85676b134023e48d627aaf4ec;p=dealii.git

reset the CopyData object
---

diff --git a/include/deal.II/meshworker/mesh_loop.h b/include/deal.II/meshworker/mesh_loop.h
index d53249613e..51a7f756a9 100644
--- a/include/deal.II/meshworker/mesh_loop.h
+++ b/include/deal.II/meshworker/mesh_loop.h
@@ -158,9 +158,11 @@ namespace MeshWorker
     Assert((!boundary_worker) == !(flags & assemble_boundary_faces),
            ExcMessage("If you specify a boundary_worker, assemble_boundary_faces needs to be set."));
 
-
     auto cell_action = [&] (const CellIteratorType &cell, ScratchData &scratch, CopyData &copy)
     {
+      // First reset the CopyData class to the empty copy_data given by the user.
+      copy = copy_data;
+
       const bool ignore_subdomain = (cell->get_triangulation().locally_owned_subdomain()
                                      == numbers::invalid_subdomain_id);