[GAMEPLAY] Casting smite or tiamat on enemies won't put Rengar's passive in combat

http://media-titanium.cursecdn.com/attachments/thumbnails/42/802/240/160/rengar_passive.png This is 10/10 reproduction rate, whenever Rengar is in combat, his passive timer goes on cooldown but I've noticed that this doesn't apply to tiamat and smite. For a reference I bought a mobi boots and mobis went on cooldown when I used smite on dummy or casted tiamat near him while his passive in combat timer didn't. https://i.lensdump.com/i/Wsx76A.png https://i.lensdump.com/i/WsxOlM.png