Officializing Enhanced Orthogonal Persistence (EOP)

Hey there!
I never wrote anything in Motoko and EOP is actually the first reason for me to try it out instead of Rust. Thanks you for this effort!

I have a question about storage and references in Motoko.

Let’s say I have two stable maps. If I store something in one map and then store the same thing in another map, will they be two different objects or the same one? I mean, if I then update one of the entries, will the other one also get updated?