[Gameplay] Sorakas spell range is reduced when casting into dragon pit

When you try to cast a spell (Q/W tested) at max range into the dragon pit as Soraka, you will try to walk around the pit instead of cast the spell, until you cast it a fair amount closer to yourself.

Video:

https://www.youtube.com/watch?v=nstgfnN9plY Proof it's not just the range indicator issue:

https://www.youtube.com/watch?v=-UzEvDcG_pg

As you can see, you can cast over walls fine, with me healing Ezreal, as well as me being able to cast Q freely at max range over the wall, but when I try the same at dragon pit, I attempt to path around the pit.