[GAMEPLAY] Vayne cannot tumble out of Jarvan's Cataclysm anymore.

When getting trapped in Jarvan's Cataclysm as Vayne, using Tumble near the edge of the ultimate no longer allows you to escape, instead it's treated as a normal wall.

Steps to Reproduce:

1. Have a Jarvan use Cataclysm on Vayne, trapping her inside the arena.
2. Have Vayne go near the edge and attempt to Tumble, which should allow her to exit the arena.
3. Vayne does not escape and instead the interaction is similar to a wall on Summoner's Rift.

(Three instances are included in the YouTube link, excuse the poor quality. It may be hard to see, but you can tell from Tumble going on CD.)