Right now the Chopper doesn't keep track of which remnant was where in the original feature. E.g. if I use it to split a line into individual segments (max vertices 2) or points (max vertices 1) there's no way of telling what the original order was, other than that they're being output in that order. Fine if you manage to maintain that order, but that's not always the case.
So I would like to argue for a _remnant_id attribute that keeps track of that.