Using edge of gordon surface for creation of another gordon surface gives undesired results or error

[Anthony-Gaudino]

Using the edge of a gordon surface during creation of another gordon surface may give undesired results:

Also an error may occur and it will appear as FreeCAD is running an infinite computation.

Example file: gordon_squares.FCStd.zip

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I think that the edge of the first surface should be cloned (like using joincurves) and then this edge should be used on the operation.

Please see example from https://www.xnurbs.com/