Kogma passive auto attack bug

Earlier today i was spectating my freinds play a ranked game together. It was all fun and games until My friend Draven or "ZoroTheFox1" fought kogma. He won the fight and kogma started chasing him with passive. All of a sudden kogma auto attacks in the middle of passive killing draven. Draven was a dead man anyways but it still doesn't matter. Kogma was in passive, this bug is not common but it is still seen. Something like this shouldn't be allowed any further. Please find a way to fix it. In the replay.gg's the one with leona that lasts 28 minutes is the one The link is a replay.gg. bot lane gets in a fight, the bug happens when leona jumps rengar, they kill rengar. Then kogma attacks draven.