attack move + smite = flash

for the longest time now i thought i was misclicking and flashing like a nub when trying to use my blue smite on enemy champs but after some testing i found out that i actually can NOT use smite while attack moving, the game just wont allow it and when i try to attack move and smite it will burn my flash if its up, if flash is not up nothing happens

i have my attack move on left shift if this somehow makes a difference

to recreate :

hold attack move and click ground and without releasing attack move and try to smite enemy champion with flash ready

i first knew it wasnt me when trying kalista jungle for fun, i practicly only use attack move on her cuz im bad but i spent a majority of the game without flash because everytime i went to use smite i would instead flash in that direction which was everytime i went to use smite cuz i always use attack move

please please fix this, i dont want to stop using attack move XD

(another thing to note, not sure of importance, my summoner spells are on S and D not on D and F, so flash on S and smite on D)