Closed attribute on supertype

[aothms]

No description provided.

[aothms]

--- tmp/a/IFC.exp	2022-02-14 20:45:28.181948900 +0100
+++ tmp/b/IFC.exp	2022-03-22 21:21:59.453749500 +0100
@@ -8725,22 +8725,21 @@
  WHERE
 	BoundaryDim : PolygonalBoundary.Dim = 2;
 	BoundaryType : SIZEOF(TYPEOF(PolygonalBoundary) * [
   'IFC4X3_DEV.IFCPOLYLINE', 
   'IFC4X3_DEV.IFCCOMPOSITECURVE']
 ) = 1;
 END_ENTITY;
 
 ENTITY IfcPolygonalFaceSet
  SUBTYPE OF (IfcTessellatedFaceSet);
-	Closed : OPTIONAL IfcBoolean;
-	Faces : LIST [1:?] OF IfcIndexedPolygonalFace;
+	Faces : SET [1:?] OF IfcIndexedPolygonalFace;
 	PnIndex : OPTIONAL LIST [1:?] OF IfcPositiveInteger;
 END_ENTITY;
 
 ENTITY IfcPolyline
  SUBTYPE OF (IfcBoundedCurve);
 	Points : LIST [2:?] OF IfcCartesianPoint;
  WHERE
 	SameDim : SIZEOF(QUERY(Temp <* Points | Temp.Dim <> Points[1].Dim)) = 0;
 END_ENTITY;
 
@@ -11643,20 +11642,21 @@
 	CorrectPredefinedType : (PredefinedType <> IfcTendonTypeEnum.USERDEFINED) OR
 ((PredefinedType = IfcTendonTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcElementType.ElementType));
 END_ENTITY;
 
 ENTITY IfcTessellatedFaceSet
  ABSTRACT SUPERTYPE OF (ONEOF
 	(IfcPolygonalFaceSet
 	,IfcTriangulatedFaceSet))
  SUBTYPE OF (IfcTessellatedItem);
 	Coordinates : IfcCartesianPointList3D;
+	Closed : OPTIONAL IfcBoolean;
  DERIVE
 	 Dim : IfcDimensionCount := 3;
  INVERSE
 	HasColours : SET [0:1] OF IfcIndexedColourMap FOR MappedTo;
 	HasTextures : SET [0:?] OF IfcIndexedTextureMap FOR MappedTo;
 END_ENTITY;
 
 ENTITY IfcTessellatedItem
  ABSTRACT SUPERTYPE OF (ONEOF
 	(IfcIndexedPolygonalFace
@@ -11909,21 +11909,20 @@
 	TopXDim : IfcPositiveLengthMeasure;
 	YDim : IfcPositiveLengthMeasure;
 	TopXOffset : IfcLengthMeasure;
 END_ENTITY;
 
 ENTITY IfcTriangulatedFaceSet
  SUPERTYPE OF (ONEOF
 	(IfcTriangulatedIrregularNetwork))
  SUBTYPE OF (IfcTessellatedFaceSet);
 	Normals : OPTIONAL LIST [1:?] OF LIST [3:3] OF IfcParameterValue;
-	Closed : OPTIONAL IfcBoolean;
 	CoordIndex : LIST [1:?] OF LIST [3:3] OF IfcPositiveInteger;
 	PnIndex : OPTIONAL LIST [1:?] OF IfcPositiveInteger;
  DERIVE
 	 NumberOfTriangles : IfcInteger := SIZEOF(CoordIndex);
 END_ENTITY;
 
 ENTITY IfcTriangulatedIrregularNetwork
  SUBTYPE OF (IfcTriangulatedFaceSet);
 	Flags : LIST [1:?] OF IfcInteger;
  WHERE