Allowing copies of yourself to modify yourself seems identical to allowing yourself to modify yourself.
I never said anything about allowing. The AI creates a new AI, modifies that, and destroys it if it doesn't like the result, regardless of what the result thinks about it. That way, even if it destroys the ability to judge or something like that, it has no problem.
Peter Suber is the Director of the Harvard Open Access Project, a Senior Researcher at SPARC (not CFAR's SPARC), a Research Professor of Philosophy at Earlham College, and more. He also created Nomic, the game in which you "move" by changing the rules, and wrote the original essay on logical rudeness.
In "Saving Machines From Themselves: The Ethics of Deep Self-Modification" (2002), Suber examines the ethics of self-modifying machines, sometimes quite eloquently: