[Client] Trading champion switches your skin

When switching champions with someone, your skin will change to whatever skin they have on that champion if you have it.

[Requires 2 players]

1. Equip a skin for a champion that you have at least 2 skins for. The other player should have the other skin equipped.
2. During champion select, have the other player choose this champion.
3. During the final phase of champion select, trade for this champion.

You should find that the skin selected is not the one you had originally equipped, but the one the other player had. I have only observed this on several occasions and haven't actually tested it.