Don't chatgpt classic NOT create memories for Chatgpt 4o ? Because mine just did!

Hi,

So I was trying to write an article using chatgpt classic.

When I was going to smoosh many of them with Chatgpt 4o.

So first I primed the context with a news article..

And then something strange happenned in the Chatgpt 4o.

It started using the ideas from the chatgpt classic chat.

Even though, I was under the impression that chatgpt 4o does not read other chats in its context, and that chatgpt classic does not save memory

So what is going on here ? Is this a bug ? Context leakage ?

Here is the chatgpt 4o chat in question

Or it seems that in addition to memories, even though I had them turned off.
The ability to reference previous chats in context, was added and turned on by default.

Here is this page

and so I turned it off