From 16681876df49d631e6b266a3aeff18c4d4b244f4 Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Fri, 25 Feb 2011 07:05:23 +0000
Subject: [PATCH] Fix regression caused by introducing of GUI observers -
 Show/Hide children operation in GEOM module has stopped working.

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

diff --git a/src/SalomeApp/SalomeApp_DataObject.cxx b/src/SalomeApp/SalomeApp_DataObject.cxx
index 328f666c6..a4a1232dd 100644
--- a/src/SalomeApp/SalomeApp_DataObject.cxx
+++ b/src/SalomeApp/SalomeApp_DataObject.cxx
@@ -386,7 +386,7 @@ bool SalomeApp_DataObject::expandable() const
 {
   bool exp = true;
   _PTR(GenericAttribute) anAttr;
-  if ( myObject->FindAttribute( anAttr, "AttributeExpandable" ) ) {
+  if ( myObject && myObject->FindAttribute( anAttr, "AttributeExpandable" ) ) {
     _PTR(AttributeExpandable) aAttrExp = anAttr;
     exp = aAttrExp->IsExpandable();
   }
-- 
2.39.2