Repro2:
1. Create a Hybrid illusion of an allied Naga Siren or Chaos Knight
2. Wait until the illusion is just about to expire
3. Cast Mirror Image with the Hybrid, timed so that the Hybrid expires during the split time of the spell

Result: Mirror Image does not get canceled when the Hybrid dies during the split time, so illusions are spawned. The same goes for Phantasm and Manta Style.

Expected: Just like how it gets canceled when Naga dies during it, it should also cancel when the Hybrid dies.