Simple answer is, the cancellation never happened to begin with.This actually gives us a bigger and more important question regarding the Su-57 mass production cancellation. Did the Russians delay the Su-57 mass production not because their Su-57 sucked or because the Russians didn't have the money, but because stealth aircraft weren't significantly superior to 4th gens with proper supporting assets?
Money and plane aren't ready yet.
Ruaf simply suffers from its complete inability to spend money effectively.
Hopefully, they will learn their lesson.