From 28f5d6e91cc19ba4abd95e4d615f5cfb8e60db21 Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Tue, 21 Oct 2025 13:08:29 +0200
Subject: [PATCH] Copy internal status on interpolated loops #7251

---
 src/ifcgeom/infra_sweep_helper.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ifcgeom/infra_sweep_helper.cpp b/src/ifcgeom/infra_sweep_helper.cpp
index f3f79d4c18..f9d50f5b00 100644
--- a/src/ifcgeom/infra_sweep_helper.cpp
+++ b/src/ifcgeom/infra_sweep_helper.cpp
@@ -172,6 +172,7 @@ taxonomy::loft::ptr ifcopenshell::geometry::make_loft(const Settings& settings_,
 						}
 
 						auto interpolated_loop = polygon_from_points(points);
+						interpolated_loop->external = w1->external;
 						if (interpolated->kind() == taxonomy::FACE) {
 							std::static_pointer_cast<taxonomy::face>(interpolated)->children.push_back(interpolated_loop);
 						} else {