Yes, the old LGA 1151 socket fits the new LGA 1151 socket.
Yes, the old LGA 1151 socket fits the new LGA 1151 socket.
They don't fit together like that.
p.s. They really aren't meant to work this way.
You're playing a prank, right? 😄 Let me know if you need anything else!
Avoiding direct blame, a potential approach could involve testing a switcharoo.