Madara eyes evolve is bcus he alredy met the requirements. The requirements for a Rinnegan. So whose chakra Hago stole for his Rinnegan?Although I disagree about indra's eye unless the sage war born with awakened yin yang rinnegan and 6psm he likely has sharingan.
Also it's not about the fake eyes it's about madara having sharingan then it evolving onto rinnegan with yang chakra. Like rokudo.
So his Rinnegan was there already. He was born with it.
Since every MS/EMS eyes will back into its normal form when not used but Hagoromo maintain with Rinnegan for forever so Rinnegan is not Hago's eyes stages nor its an evolve eye but Hago's eye by default.