From 2d4c17a08856076b807bfee0b024dd58e678731c Mon Sep 17 00:00:00 2001
From: Jane Tournois <jane.tournois@geometryfactory.com>
Date: Thu, 27 Feb 2025 15:13:20 +0100
Subject: [PATCH] deal with cells with subdomain_index 0

---
 Lab/demo/Lab/Plugins/IO/VTK_io_plugin.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Lab/demo/Lab/Plugins/IO/VTK_io_plugin.cpp b/Lab/demo/Lab/Plugins/IO/VTK_io_plugin.cpp
index 58512209f23..121aa7cd6e7 100644
--- a/Lab/demo/Lab/Plugins/IO/VTK_io_plugin.cpp
+++ b/Lab/demo/Lab/Plugins/IO/VTK_io_plugin.cpp
@@ -447,8 +447,8 @@ public:
            cit != c3t3_item->c3t3().triangulation().finite_cells_end();
            ++cit)
       {
-        CGAL_assertion(cit->info() >= 0);
-        c3t3_item->c3t3().add_to_complex(cit, cit->info());
+        if(cit->info() != 0)
+          c3t3_item->c3t3().add_to_complex(cit, cit->info());
         for(int i=0; i < 4; ++i)
         {
           if(cit->surface_patch_index(i)>0)