From 8bf036a0567357d4bd92c3fe08a4130b965b4643 Mon Sep 17 00:00:00 2001
From: snn <snn@opencascade.com>
Date: Fri, 30 Nov 2018 10:39:15 +0300
Subject: [PATCH] 0030392: XCAFDoc_GraphNode doesn't copy backward links

---
 src/XCAFDoc/XCAFDoc_GraphNode.cxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/XCAFDoc/XCAFDoc_GraphNode.cxx b/src/XCAFDoc/XCAFDoc_GraphNode.cxx
index 7ce30e7af5..46e835cd13 100644
--- a/src/XCAFDoc/XCAFDoc_GraphNode.cxx
+++ b/src/XCAFDoc/XCAFDoc_GraphNode.cxx
@@ -378,6 +378,8 @@ void XCAFDoc_GraphNode::Paste(const Handle(TDF_Attribute)& into,
     if (!func.IsNull())
     {
       intof->SetFather(func);
+      if (func->ChildIndex(this) && !func->ChildIndex(intof))
+        func->SetChild(intof);
     }
   }
 
@@ -391,6 +393,8 @@ void XCAFDoc_GraphNode::Paste(const Handle(TDF_Attribute)& into,
     if (!func.IsNull())
     {
       intof->SetChild(func);
+      if (func->FatherIndex(this) && !func->FatherIndex(intof))
+        func->SetFather(intof);
     }
   }
   intof->SetGraphID(myGraphID);
-- 
2.39.5