Sweep return not cleaned inside context

[MatthiasJ1]

Because of

    if context is not None:
        context._add_to_context(*(new_solids + new_faces), clean=clean, mode=mode)
    elif clean:
        new_solids = [solid.clean() for solid in new_solids]
        new_faces = [face.clean() for face in new_faces]

ret will not be cleaned

with BuildPart():
  ...
  ret = sweep()

[gumyr]

When looking at this issue I discovered that sweeping multiple faces wasn't working properly so that is fixed now.

However, with respect to the issue raised here I'm not sure what the correct answer is. For clean to work, multiple sweep results would have to be fused together which may not be what the user intended and may result in unnecessary OCCT failures. clean is passed to the builder which is explicitly combining parts together and applying clean at the end of the operation not on the parts which are going to be combined (i.e. clean is applied after not before).

I agree though that the use of clean here is very ambiguous and at least needs to be clarified.