Problem with the ctlshow on nurbs

Hello,

I would like to know if it's a normal behaviour if we apply a texture from a jit.gl.texture with the parameter rectangle on On to don't see correctly the contour of the nurbs (with ctlshow 1)? If the rectangle is on Off we can see perfectly the contour but is there a way to see that contour correctly with the parameter rectangle On?

Thanks a lot.