777 has a pairing that does CGN-CDG-MUC-FRA (3 legs in a 777 ? ... I digress)

I think what Lag is saying is maybe they bring outbound German freight to Paris on the first leg. Then pick up a full load of stuff destined for Germany once there, dropping it in MUC and FRA on the next two legs. But, not picking up new German stuff in MUC and dropping it in FRA.

I have no clue if that sort of thing is the way it was meant to work or a loophole.

I also wonder: A German shipped a package from Cologne to Munich. Can it go there via Paris on the first two legs of the above trip and not be considered cabotage since it wasn't flown directly within the borders of Germany?