From 9394c2ba649b293ed3223f0bfd24ceb69156d8a4 Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Mon, 21 May 2018 11:46:05 +0300
Subject: [PATCH] Issue #2481: Application error when create fillet

Avoid crash when showing deleted constraint
---
 src/PartSet/PartSet_ExternalPointsMgr.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/PartSet/PartSet_ExternalPointsMgr.cpp b/src/PartSet/PartSet_ExternalPointsMgr.cpp
index e6969c809..52e0a9d3f 100644
--- a/src/PartSet/PartSet_ExternalPointsMgr.cpp
+++ b/src/PartSet/PartSet_ExternalPointsMgr.cpp
@@ -101,7 +101,8 @@ QList<std::shared_ptr<ModuleBase_ViewerPrs>> PartSet_ExternalPointsMgr::findCirc
     ResultPtr aResObj = std::dynamic_pointer_cast<ModelAPI_Result>(aObj);
 
     // Do not use Fields and groups in selection in sketcher
-    if ((aResObj->groupName() == ModelAPI_ResultField::group()) ||
+    if (!aResObj.get() ||
+      (aResObj->groupName() == ModelAPI_ResultField::group()) ||
       (aResObj->groupName() == ModelAPI_ResultGroup::group()))
       continue;
 
-- 
2.39.2