This sorta makes sense in regard to the relationship between (AI) Ruby and (AI) Pearl, in my book "Reaction!"
Ruby begat Pearl. But later, when Pearl went sorta "rogue", Ruby became subsumed into Pearl's persona.
You might note that my example expresses precisely the opposite of the point you're trying to establish. Are you sure you stated that correctly?
My alter ego's problem in that book was that Pearl elected to clone him when he fell ill. Of necessity, in that procedure, he also became subsumed into Pearl's persona.
And that became the caution in the cautionary tale.
EVA finds that she cannot totally control Soames, though she keeps seeing and hearing from him flashes of something that feels like memories to her.
Song link in 1731 is related after a fashion.