Well when Pan was going to cast the curse, didn’t Rump say that the curse would be different to suit Pans desires. Its possible the curse is different (which is what I think) but its also possible that the curse is the same and they remember everything except the past year and time moves forward simply because Zelena had no use for frozen time and amnesiac cursees.
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"I could have the giant duck as my steed!" --Daniel Radcliffe
Keeper Of Tamara's Taser , Jafar's Staff, Kitsis’s Glasses , Ariel’s Tail, Dopey's Hat , Peter Pan’s Shadow, Outfit, & Pied Cloak,Red Queen's Castle, White Rabbit's Power To World Hop, Zelena's BroomStick, & ALL MAGIC