Are you familiar with the term “retconning”?
It stands for “Retroactive continuity“, and basically means when a previously established fact(s) is altered in the continuity of a fictional work. Retconning happens in movies, TV shows and comic books all the time, especially when the writer wants to unmake something that’s already happened, like if a character died and they want him/her back.
But again, …comic books. Movies.
Fiction. As in: “Not real”.
Because you can’t “retcon” reality.
And yet what else can you call this?
Two Heads are Better Than One 