From 630a5cb3a1183bab0e914fb82fd6658917250409 Mon Sep 17 00:00:00 2001
From: vsv <vitaly.smetannikov@opencascade.com>
Date: Mon, 12 May 2014 11:38:10 +0400
Subject: [PATCH] Avoid crash on creation of sketch line finish

---
 src/XGUI/XGUI_DocumentDataModel.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/XGUI/XGUI_DocumentDataModel.cpp b/src/XGUI/XGUI_DocumentDataModel.cpp
index 079986bc5..719b6f466 100644
--- a/src/XGUI/XGUI_DocumentDataModel.cpp
+++ b/src/XGUI/XGUI_DocumentDataModel.cpp
@@ -159,6 +159,8 @@ QVariant XGUI_DocumentDataModel::data(const QModelIndex& theIndex, int theRole)
     {
       int aOffset = historyOffset();
       FeaturePtr aFeature = myDocument->feature(FEATURES_GROUP, theIndex.row() - aOffset);
+      if (!aFeature)
+        return QVariant();
       switch (theRole) {
       case Qt::DisplayRole:
         if (aFeature)
-- 
2.39.2