When Mordekaiser kills Jhin while he has last bullet he doesn't reload it just stays.
I was testing Jhin with multiple champions items, etc and I came across a bug when Jhin dies with one bullet left by Mordekaisers ultimate. If Jhin shots three shots then is killed by a Mordekaisers ultimate, Jhin will fire the same bullet and not count down or reload. This may not be a bug, but imagine a fed late game Jhin get killed, and this happens. R.I.P. Tower. The amount of damage will be insane.