>>2824662Rei Q is not rei. Rei's soul is not in ReiQ and as such its a new person in one of the rei clone bodies.
In NGE, her soul was put back into clone bodies so her reiterations were the same rei in a new body.
An argument can be made that Rebuild 1.0 has the same style of reincarnation for rei.
In rebuilt 2.0 onward there was a definate re-do of the system in which Rei is re-created. Making any new rei afterwards just another clone without the original soul.