From 2a4f4d69900109ef8bf48e091577e19d5e2c3c91 Mon Sep 17 00:00:00 2001
From: Denis Rouzaud <denis.rouzaud@gmail.com>
Date: Fri, 16 Aug 2013 11:16:15 +0200
Subject: [PATCH] fix crash at undo in digitize

---
 src/app/qgsmaptoolcapture.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/app/qgsmaptoolcapture.cpp b/src/app/qgsmaptoolcapture.cpp
index ad8dc59b5e96..25639a82a996 100644
--- a/src/app/qgsmaptoolcapture.cpp
+++ b/src/app/qgsmaptoolcapture.cpp
@@ -245,11 +245,11 @@ void QgsMapToolCapture::undo()
 
     mRubberBand->removePoint( -1 );
 
-    if ( rubberBandSize > 0 )
+    if ( rubberBandSize > 1 )
     {
       if ( tempRubberBandSize > 1 )
       {
-        const QgsPoint *point = mRubberBand->getPoint( 0, rubberBandSize - 1 );
+        const QgsPoint *point = mRubberBand->getPoint( 0, rubberBandSize - 2 );
         mTempRubberBand->movePoint( tempRubberBandSize - 2, *point );
       }
     }