From 4bc0869ebdbbac20a4e05062a9f96c96a9bfdbfd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Atgeirr=20Fl=C3=B8=20Rasmussen?= <atgeirr@sintef.no>
Date: Fri, 17 Feb 2023 11:26:39 +0100
Subject: [PATCH] Ensure serialization of the solution object also with
 dune-fem.

---
 opm/models/discretization/common/fvbasediscretization.hh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/opm/models/discretization/common/fvbasediscretization.hh b/opm/models/discretization/common/fvbasediscretization.hh
index 93bf5a09df..5c11638436 100644
--- a/opm/models/discretization/common/fvbasediscretization.hh
+++ b/opm/models/discretization/common/fvbasediscretization.hh
@@ -1899,8 +1899,13 @@ public:
     template<class Serializer>
     void serializeOp(Serializer& serializer)
     {
-        for (auto& sol : solution_)
+        for (auto& sol : solution_) {
+#if HAVE_DUNE_FEM
+            serializer(sol->blockVector());
+#else
             serializer(*sol);
+#endif
+        }
     }
 
     bool operator==(const FvBaseDiscretization& rhs) const