From c4760da918bd8cefdfb4aeb579ee79cccaea60b6 Mon Sep 17 00:00:00 2001
From: Jane Tournois <janetournois@users.noreply.github.com>
Date: Tue, 3 Dec 2024 10:48:57 +0100
Subject: [PATCH] in OpenMesh, the outgoing halfedge of a boundary vertex must
 be the boundary halfedge

---
 BGL/include/CGAL/boost/graph/IO/OM.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/BGL/include/CGAL/boost/graph/IO/OM.h b/BGL/include/CGAL/boost/graph/IO/OM.h
index 9c582267ae19..052e6915b5a9 100644
--- a/BGL/include/CGAL/boost/graph/IO/OM.h
+++ b/BGL/include/CGAL/boost/graph/IO/OM.h
@@ -110,6 +110,11 @@ bool write_OM(std::string fname, const Graph& g, VPM vpm, VFeaturePM vfpm, EFeat
     omesh.status(omv).set_feature(isfeature);
   }
 
+  for (auto v : vertices(omesh))
+  {
+    adjust_border_halfedge(v, omesh);
+  }
+
   return OpenMesh::IO::write_mesh(omesh, fname, OpenMesh::IO::Options::Status, precision);
 }
 } // end of internal namespace