[GAMEPLAY] Lux - Using Final Spark straight after Hextech Belt causes it to split in two

When playing Lux casting Hextech Protobelt-01 (rockets shooting forward) right before using Final Spark (R - Lux Ultimate) causes the ultimate to split in two and hit twice in a V shape formation. This can make it very hard to dodge and obviously creates an unfair advantage when practised and used adequately.

1. Build Hextech Protobelt-01
2. Cast Hextech Protobelt-01
3. Immediately after cast Final Spark
4. Watch the ultimate split in two (along the lines of the firing rockets)

I've watched this happen multiple times.