The CAI is definitely on the loop again.

I try to get a trade agreement from a country, any country, and they shoot back with something like:
"Oh, we've got a better idea. A trade agreement, an alliance, you give us Jamaica and Scotland, and we'll give you Corsica! Isn't that a grand idea?"

And then will refuse to alter the deal in any way. Apparently the concept 'negotiation' still evades the AI, as does the concept of 'do not want', as in:

I will not want it, Sam I Am.
I would not sign it in Ireland.
I would not sign it with Sweden.
I will not sign it for Jamaica.
I will not sign it for Sicily.
I will not sign in France or Belgium.
I will not sign anywhere.
I do not want an alliance, Sam I Am.
I do not like you, Sam I Am.