When Mordekaiser Ults Jhin Jhin's passive stays in the same state it was in when he died.
That is to say the Jhin soul does not reload and can constantly shoot, and more importantly, if the fourth shot was chambered when he died, the Jhin soul will continue to fire fourth shots, benefiting from the crit, the crit movespeed boost, and the execute damage.
This is pretty much gamebreaking to play against and makes a Jhin soul disproportionately powerful.
I know it's not common but it shouldn't be insanely hard to fix and when it does come up it ruins games.
This bug has happened literally every single time I've seen a Jhin soul.
when you get that dank rpc 4th auto jhin