updated copyright message

[modules/shaper.git] / src / Model / Model_AttributeRefList.cpp

diff --git a/src/Model/Model_AttributeRefList.cpp b/src/Model/Model_AttributeRefList.cpp
index 313c0bb6bf112116eafba0a7c59225793ffee55d..b6b2c42f29e8288f60294740b2258dfbe516a6b3 100644 (file)
--- a/src/Model/Model_AttributeRefList.cpp
+++ b/src/Model/Model_AttributeRefList.cpp
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2019  CEA/DEN, EDF R&D
+// Copyright (C) 2014-2023  CEA, EDF
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
@@ -182,7 +182,9 @@ ObjectPtr Model_AttributeRefList::iteratedObject(TDF_ListIteratorOfLabelList& th
       }
       theExtIter.Next();
     } else { // internal document object
-      anObj = theDoc->objects()->object(theLIter.Value());
+      TDF_Label aLab = theLIter.Value();
+      if (!aLab.IsNull())
+        anObj = theDoc->objects()->object(theLIter.Value());
     }
   }
   return anObj;