No it's like you leasing your house. Selling the house to a third party. One party (your buyer) owns the house. The original owner also owns the same house, sin

No it's like you leasing your house. Selling the house to a third party. One party (your buyer) owns the house. The original owner also owns the same house, since he only leased it to you. But houses are non- distinguishable. You don't need to give him back exactly that house, just an identical one.