[GAMEPLAY] rek'sai tunnel bug MUST FIX NOW!

i was playing olaf chasing reksai when she suddenly went over the wall without flash i was like... how is that even possible?!?! so i warded and saw a tunnel of her but the tunnel was on the other side of the wall... this bug is ruining the game

i don't know if this is a bug or intended but it's really bull sh*t that this is still on the live servers

please answer and fix this riot (look at the video as prove!)