converting surface or curve to Bezier patches/segments produces just 1 patch/segment

Hi,

I'm having some issues trying to convert a curve and surface into Bezier segments/patches, the functions

GeomConvert_BSplineCurveToBezierCurve
GeomConvert_BSplineSurfaceToBezierSurface

Even though the curve and surface are rather complex, both just generate 1 curve/patch resp. 

Perhaps I'm missing something here ?

I've attached a demo file, I hope someone knows how to do this.

thanks,

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