The original script called for all unpleasant memories of The Village to be erased, his mind regressed to the day ZM73 was due to hand in his letter of resignation. But that doesn’t stop the event of ZM73 having handed in his letter of resignation. He might not remember doing it, but it had happened nonetheless. We’re talking brainwashing here, not time travel! So as far as Sir Charles Portland and his daughter Janet are concerned, ZM73 had still resigned a year earlier!
Be seeing you