A Transform effect with copies on a group copied each member on its own,
so one member's copies lay over the fills of the next member. Each copy
is now a whole group, the original on top and each copy below the one
before. A path's copies follow the same order. Guides are not copied,
and the copies stop at the node limit. A group with its own fill or
stroke, a clipping group and live type keep their previous copies.