Master Yi Double hit not reducing Q cooldown[GAMEPLAY]

I have encountered a new bug as of the most recent patch whereas the second hit of Master Yi's double strike is not reducing the cooldown of alpha strike. I am not certain if it isn't applying all on-hit effects or if it's just affecting Alpha strike. It's fairly self-explanatory to replicate; simply play as Yi, and note that your q cooldown only reduces by 1 second when you double strike an enemy. The distinctive "flash" that occurs when an ability's CD is reduced doesn't occur twice, that's the easiest way to notice it. Anyone else seen this?