From 578f38de3141dd39875ec6f0f32eec57b994c59f Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Fri, 25 Jul 2014 11:41:27 +0400
Subject: [PATCH] Regression in coincidence constraint

---
 src/SketchSolver/SketchSolver_Constraint.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/SketchSolver/SketchSolver_Constraint.cpp b/src/SketchSolver/SketchSolver_Constraint.cpp
index f831c170b..e44e1390b 100644
--- a/src/SketchSolver/SketchSolver_Constraint.cpp
+++ b/src/SketchSolver/SketchSolver_Constraint.cpp
@@ -81,6 +81,7 @@ const int& SketchSolver_Constraint::getType(boost::shared_ptr<SketchPlugin_Const
     {
       boost::shared_ptr<ModelAPI_Attribute> anAttr =
         theConstraint->data()->attribute(SketchPlugin_Constraint::ATTRIBUTE(indAttr));
+      if (!anAttr) continue;
       switch (typeOfAttribute(anAttr))
       {
       case POINT2D: // the attribute is a 2D point
-- 
2.39.2