Movement bugs

i was playing jungle amumu and while helping bot lane i initiated from tri bush onto naught and tristana who were sieging bot tower i bandaged tossed onto tristana as she jumped. (she hit rocket jump and durring the channel my bandage connected) tristana was propelled by her jump to the tower and suffered no ill effects from the bandage toss stun. she landed and last hit my adc. while i was propelled from my bandage toss to the outer wall mid way between tower and botlanes bush. im not sure how the coding works or if thats intended. but i just wanted to bring it too your attention