Lux's Light Binding (q) can hit three enemies [GAMEPLAY]

When using Lux's q I discovered that if it kills two close together minions it will continue going until it hits a third target even though it's only supposed to hit two targets. This only happens if the minions are next to each other and are both killed by the q although it is reproducible 100% of the time.

1.) Wait until two minions who are nest two each other get low

2.) Shoot Lux's q so that it hits both minions in as quick succession as possible (Hitting them both at the same time is best)

3.) Watch as the q continues until it either reaches its max range or hits a third target