kill a bug born at replacement of TopTools_DataMapOfShapeShape with
StdMeshers_ShapeShapeBiDirectionMap in the frames of PAL22863
ancestIt.Initialize( theMesh.GetAncestors( edge2 ) );
for ( ; ancestIt.More() && face2.IsNull(); ancestIt.Next() ) {
if ( ancestIt.Value().ShapeType() == TopAbs_FACE &&
- !theMap.IsBound( ancestIt.Value() ) &&
+ !theMap.IsBound( ancestIt.Value(), /*is2nd=*/true ) &&
subshapes2.Contains( ancestIt.Value() ))
face2 = ancestIt.Value();
}