Blitz can knock up fizz while Fizz is untargetable [GAMEPLAY]

During my second game as fizz, I kept getting knocked up by Blitz' punch in the middle of my jump. The cooldown was going and everything. I figured maybe there was a delay before becoming untargetable and he was hitting me after the cast but before reaching that point (which may still be the case, I'm not entirely sure), but then something happened and I knew there was a bug. I literally got knocked up while in Zhonya's stasis. I didn't take any damage, but blitz blew the ability and my little golden statue popped up on the screen. I have the replay of the game saved (i got knocked up twice during the jump and once during Zhonya's), but I'm not sure how to share it here if it's necessary.