Found a bug where you're able to see opponents civs with "hide civs" turned on

So i was playing a custom 2v2 the other day with my brother and some friends. We had hidden civ turned on.

My two opponents went colours one and two (blue and red)

I want to go pink because its the superior team, and as I begin to cycle through the colours I realise I can see the civilisations that the other team had picked.

Say blue had picked vikings, when i made my colour blue I could see that his civ was vikings

I dont have pics to back this up because we just wanted to our play games and I didnt think to save evidence, but im not crazy i swear it exists