Kled's second Joust can go over walls? [GAMEPLAY]

Kled's E, his Jousting ability, his dash, specifically says that it cannot go over walls. His E says that if you hit an enemy with it, you can then dash through them again.

Well, it happened in my last Kled game that after I hit an enemy Riven with my first Joust, they jumped over a wall, and my second Joust followed them over the wall. Perhaps the second E is supposed to be able to do this, but it looks and feels like a bug.

I've only seen it happen once, and it requires two people to reproduce, so it's difficult to test over and over again. But it appears that all you need to do to reproduce this bug is to hit an enemy with Jousting, have them go over a wall, and then press E again.

If it matters, the enemy champion was a Riven and the wall was that thin wall with the blasting cone between red side blue buff and dragon.