Eventual convergence? Assuming each defect fix has a 30% chance of introducing a new defect, we keep cycling until done?
Assuming you can catch every new bug it introduces.
Both assumptions being unlikely.
You also end up with a code base you let an AI agent trample until it is satisfied; ballooned in complexity and redudant brittle code.
Why would it converge?
That's assuming that each fix can only introduce at most one additional defect, which is obviously untrue.