Bug: Mercantile special resources get cloned if City States capture another city

[ruskyandrei]

I don't have a save for it to upload as I am not at the computer where I noticed it but it should be very easy to reproduce.

Apparently the way the special mercantile resources work is that they are created on the tile under each mercantile city state.
When a mercantile city state captures a city, the tile under that city also receives the special resource.

Since the CS's usually just raze captured cities, the special resource can then be seen on top of the tile the city was on, however it cannot be improved. It does however provide a commerce bonus.

 

[Pfeffersack]

Sadly cases where a CS at all (and not necessarily a Mercantile one then!) capture cities are extremly rare in (at least my) games. So if anyone happens to have a save for this I'm pretty sure it would increase chances that this gets attention...

 

[arieltal]

yes i have also noticed that, i had a case where a city state with jewelry captured
another city, and set it to raze, the tile on which the city was on looked like a marble
and was porcelain. i tried to settle next to it but i couldn't mine it or quarry it,
i reloaded and tried to settle on the tile and i think i did get the porcelain bonus.
(don't remember for sure)