Jumper interaction with crossover in 3 way speaker

Hi, I wonder how the crossover interacts in a 3 way loudspeaker, when using a jumper? Will the sound coming from the jumper also be sent a little to the midrange and more to the tweeter? Will the signature of the materials used (example: Silver-copper) in the jumper also influence the sound of the entire 3-way speaker, tweeter-midrange-bass?