While this is the most prominent example, this isn't the only time this happened.
In one issue of the US comics. I'm gunna say Totalled! (because I don't remember the exact story off the top of my head) Broadside appears. In the UK reprint Broadside is recoloured and redrawn into a random generic because he's not supposed to be there!
On the other hand they didn't manage to do this with Twin Twist... so maybe he is Salt Man Z?
--Jhiaxus.