Indomitable procs through Unstoppable when Cursed

[WillTreaty525]

Tested in lobby, not in game. After activating Unstoppable, a friend used Curse on me and it proc'd Indomitable despite Unstoppable nullifying Curse. Indomitable shouldn't activate, as it doesn't proc on Knockdown, which we tested as well.

Screenshot shows Indomitable on cooldown after getting hit with Curse while Unstoppable is still active.