From 915a5c92ed1a86ffcd37ed74a63dc1acc9d73b97 Mon Sep 17 00:00:00 2001
From: eap <eap@opencascade.com>
Date: Thu, 7 Jul 2011 07:51:15 +0000
Subject: [PATCH] fix a SIGSEGV in the following use case: - create a box -
 create a mesh on the box w/o hypotheses - pop-up on the mesh in OB -> SIGSEGV

---
 src/LightApp/LightApp_SelectionMgr.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/LightApp/LightApp_SelectionMgr.cxx b/src/LightApp/LightApp_SelectionMgr.cxx
index 6b9e46417..5f823ae63 100644
--- a/src/LightApp/LightApp_SelectionMgr.cxx
+++ b/src/LightApp/LightApp_SelectionMgr.cxx
@@ -460,7 +460,7 @@ QList<Handle_SALOME_InteractiveObject> LightApp_SelectionMgr::selectionCache( co
     if ( myCacheSelection.contains( *it ) ) {
       const SelList& lst = myCacheSelection[*it];
       for ( SelList::const_iterator itr = lst.begin(); itr != lst.end(); ++itr ) {
-	if ( !set.contains( (*itr)->getEntry() ) ) {
+	if ( !(*itr).IsNull() && !set.contains( (*itr)->getEntry() ) ) {
 	  res.append( *itr );
 	  set.insert( (*itr)->getEntry() );
 	}
-- 
2.39.2