Fix the copper chest

So with the new copper chest being added in the newest game drop, i found a glitch that when you put two different weathered/oxidized chests together, it turns both of them into the lowest level of copper. for example, if you put a exposed copper chest next to a oxidized copper chest, both chests will turn into the exposed copper chest. I think a good fix for this is to make it so when you put two different copper chests together, it makes one side have one copper state, and one for the other.