X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;ds=inline;f=src%2FModel%2FModel_AttributeReference.cpp;h=176b889f043ee3e5603fac53d4e8817f55a9b504;hb=e8fce5fe73fee1a8ea2929934a7e6f71bd1e3eb5;hp=ab0ca8fd3d612a6bc5807f8cb19fe8ed5d80b975;hpb=a94fc319f2aa64b43c9a73b5ff7063923648faec;p=modules%2Fshaper.git

diff --git a/src/Model/Model_AttributeReference.cpp b/src/Model/Model_AttributeReference.cpp
index ab0ca8fd3..176b889f0 100644
--- a/src/Model/Model_AttributeReference.cpp
+++ b/src/Model/Model_AttributeReference.cpp
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2017  CEA/DEN, EDF R&D
+// Copyright (C) 2014-2021  CEA/DEN, EDF R&D
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
@@ -12,10 +12,9 @@
 //
 // You should have received a copy of the GNU Lesser General Public
 // License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 //
-// See http://www.salome-platform.org/ or
-// email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
 //
 
 #include "Model_AttributeReference.h"
@@ -83,11 +82,13 @@ ObjectPtr Model_AttributeReference::value()
       Handle(TDataStd_AsciiString) anEntry;
       if (myRef->Label().FindAttribute(TDataStd_AsciiString::GetID(), anEntry)) {
         std::shared_ptr<Model_Document> aDR = std::dynamic_pointer_cast<Model_Document>(aRefDoc);
-        TDF_Label aRefLab;
-        TDF_Tool::Label(aDR->objects()->featuresLabel().Data(),
-          anEntry->Get().ToCString(), aRefLab);
-        if (!aRefLab.IsNull()) {
-          return aDR->objects()->object(aRefLab);
+        if (aDR.get() && aDR->objects()) {
+          TDF_Label aRefLab;
+          TDF_Tool::Label(aDR->objects()->featuresLabel().Data(),
+            anEntry->Get().ToCString(), aRefLab);
+          if (!aRefLab.IsNull()) {
+            return aDR->objects()->object(aRefLab);
+          }
         }
       }
     }
@@ -126,6 +127,7 @@ void Model_AttributeReference::reinit()
   myIsInitialized = myLab.FindAttribute(TDF_Reference::GetID(), myRef) == Standard_True;
   if (!myIsInitialized) {
     myRef = TDF_Reference::Set(myLab, myLab);  // not initialized references to itself
+    myIsInitialized = true;
   } else {
     if (owner()) {
       std::shared_ptr<Model_Document> aDoc =