[Gameplay] Zz'Rot Portal - when voidlings take down an inhibitor they do not grant the owner 50 Gold

Steps to reproduce-

1. Get Zz'Rot portal
2. Let only minions destroy an inhibitor
3. You don't reveive 50 gold that normally comes with destroying an inhib

Voidlings grant gold for killing minions and towers, it stands to reason that it should work with inhibitors as well, so this is possibly a bug.