Match ID 5400969482

Summary:
Happened around 19 mins, I died to aa ulti whilst simultaneously activating my supernova, supernova went in to cool down without happening.

repro:
1) got aa ulti on me whilst on low hp
2) activated supernova on same tick i die because of aa ulti

result:
phoenix died and supernova went on cooldown

Expected:
Supernova to happen or not go in to cooldown

https://imgur.com/a/T69Qed2