Elytra glitches out when used to get through the End gateway portal.

When I use the Elytra to go through the End gateway portal without using any ender pearls.

I expected to go through without any problems, and I did go through.

But on the other side, I found out that I was still gliding even upon touching the ground, and the jump button making me bounce in the air without cancelling the glide. Even unequipping the Elytra does not stop the effect.

1. Cause the End gateway portal to spawn.
2. Fly through it with an Elytra.
3. Move away from the gateway portal.

Videos of bug in action included.
*One video contains a jump-cut, because of max. file upload size.