0031568: Data Exchange - invalid model produced after STEP import

[occt.git] / src / STEPCAFControl / STEPCAFControl_Reader.cxx

diff --git a/src/STEPCAFControl/STEPCAFControl_Reader.cxx b/src/STEPCAFControl/STEPCAFControl_Reader.cxx
index 487c991..77dcf0d 100644 (file)
--- a/src/STEPCAFControl/STEPCAFControl_Reader.cxx
+++ b/src/STEPCAFControl/STEPCAFControl_Reader.cxx
@@ -810,7 +810,9 @@ TDF_Label STEPCAFControl_Reader::AddShape(const TopoDS_Shape &S,
     TDF_Label subL = AddShape(Sub0, STool, NewShapesMap, ShapePDMap, PDFileMap, ShapeLabelMap);
     if (!subL.IsNull()) {
       TDF_Label instL = STool->AddComponent(L, subL, it.Value().Location());
-      ShapeLabelMap.Bind(it.Value(), instL);
+      if (!ShapeLabelMap.IsBound(it.Value())) {
+        ShapeLabelMap.Bind(it.Value(), instL);
+      }
     }
   }
   if (SHAS.Length() > 0) STool->SetExternRefs(L, SHAS);