Revert MPI_Comm_free placement

src/utils/Partitioner.cpp

@@ -72,9 +72,10 @@ Partitioner::partition(const CRSGraph& graph)
       throw UnexpectedError("Metis Error");
     }
     // LCOV_EXCL_STOP
-  }
 
     MPI_Comm_free(&parmetis_comm);
+  }
+
   MPI_Group_free(&mesh_group);
 
   return part;