User blog comment:Commander Marko/Commander Marko's set of Custom Patch Notes! (I regret doing this...)/@comment-4834593-20140715134746

Sure, but do the same for Lux, Ezreal and other champions that have this if they die while casting the ability.
 * Fixed a bug which caused Cataclysm to go on its full cooldown if Jarvan IV died while casting it.