From 8610d99b04720958b42047f08ef1f5b00a2d4f4f Mon Sep 17 00:00:00 2001
From: Steve Yin <steve_y@apache.org>
Date: Fri, 14 Feb 2014 08:44:17 +0000
Subject: Related: #i124065# Low performance opening attached .ods

(cherry picked from commit d89ee4f6306ce8f290e01c80edbcc28a5cd8dcc3)

Conflicts:
	sc/inc/document.hxx
	sc/source/core/data/documen3.cxx
	sc/source/ui/unoobj/nameuno.cxx

Change-Id: Iced475cefe1df62920535db252841fe40339ebb1
---
 sc/source/core/data/documen3.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sc/source/core/data/documen3.cxx b/sc/source/core/data/documen3.cxx
index e8fed65d4c30..5cafb2a17fa1 100644
--- a/sc/source/core/data/documen3.cxx
+++ b/sc/source/core/data/documen3.cxx
@@ -200,11 +200,13 @@ void ScDocument::SetRangeName(SCTAB nTab, ScRangeName* pNew)
 
 void ScDocument::SetRangeName( ScRangeName* pNewRangeName )
 {
+    if (pRangeName == pNewRangeName)
+        return;
+
     delete pRangeName;
     pRangeName = pNewRangeName;
 }
 
-
 const ScRangeData* ScDocument::GetRangeAtBlock( const ScRange& rBlock, OUString* pName ) const
 {
     const ScRangeData* pData = NULL;
-- 
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