Something REALLY annoying on Diana
When you have runic echoes or Luden or just a build with a lot of AP, your Q kills minions and you can't Q+R on them to chase an enemy because your R goes on cooldown. Your only hope is to luckily find a canon wave on your way.
Same goes for when you want to get in a fight by dashing on a low HP enemy, if your Q kills him your R goes on CD and you become useless.
So Riot, could you please change her R so it still resets when you R on a target hit by Q even if it died before your dash ends?