From 92c20f4e2995af142a27f20b02648c46704f9a15 Mon Sep 17 00:00:00 2001
From: vsv <vitaly.smetannikov@opencascade.com>
Date: Mon, 12 May 2014 11:16:38 +0400
Subject: [PATCH] Fix of crash on feature request.

---
 src/XGUI/XGUI_DocumentDataModel.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/XGUI/XGUI_DocumentDataModel.cpp b/src/XGUI/XGUI_DocumentDataModel.cpp
index e1d4aee48..079986bc5 100644
--- a/src/XGUI/XGUI_DocumentDataModel.cpp
+++ b/src/XGUI/XGUI_DocumentDataModel.cpp
@@ -322,7 +322,10 @@ FeaturePtr XGUI_DocumentDataModel::feature(const QModelIndex& theIndex) const
 {
   if (theIndex.internalId() == PartsFolder)
     return FeaturePtr();
-
+  if (theIndex.internalId() == HistoryNode) {
+      int aOffset = historyOffset();
+      return myDocument->feature(FEATURES_GROUP, theIndex.row() - aOffset);
+  }
   QModelIndex aIndex = toSourceModelIndex(theIndex);
   if (!isSubModel(aIndex.model())) 
     return FeaturePtr();
-- 
2.39.2