From f238ad7d3a5e068bf3bdc9a9c3b7cd2385dea08e Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Wed, 24 Jun 2015 18:58:18 +0300
Subject: [PATCH] From NewGEOM: activation of SMESH after any module without
 object browser crashes application

---
 src/LightApp/LightApp_Application.cxx | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/LightApp/LightApp_Application.cxx b/src/LightApp/LightApp_Application.cxx
index 4064fb3d2..7126ffbc6 100644
--- a/src/LightApp/LightApp_Application.cxx
+++ b/src/LightApp/LightApp_Application.cxx
@@ -512,8 +512,9 @@ bool LightApp_Application::activateModule( const QString& modName )
   updateWindows();
   updateViewManagers();
 
-  if ( activeStudy() && activeStudy()->root() && objectBrowser() && objectBrowser()->root() != activeStudy()->root() ) {
-    objectBrowser()->setRoot( activeStudy()->root() );
+  if ( activeStudy() && activeStudy()->root() && objectBrowser() ) {
+    if ( objectBrowser()->root() != activeStudy()->root() ) 
+      objectBrowser()->setRoot( activeStudy()->root() );
     updateObjectBrowser( true );
   }
   return true;
-- 
2.39.2