Porting to OCCT 7.5.0 and minor improvements/bugfixes.

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

diff --git a/src/Model/Model_AttributeRefList.cpp b/src/Model/Model_AttributeRefList.cpp
index 6fb763a0231065add44a49024a3486bd69736ecb..44f7e44ab01fa922d1923a40384c438f3a742e65 100644 (file)
--- a/src/Model/Model_AttributeRefList.cpp
+++ b/src/Model/Model_AttributeRefList.cpp
@@ -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;