Horses, Donkeys, Mules, Zombie Horse and Skeleton Horse when they are pushed can cross Blocks
Steps to Reproduce
1. Break the Blocks Like in the picture and put a horse or others in the hole
2.Then try to push it into the Block. How you can see the horse enters inside the Block and dies suffocated
Created Issue:
Horses, Donkeys, Mules, Zombie Horse and Skeleton Horse when they are pushed can cross Blocks
Steps to Reproduce
1. Break the Blocks Like in the picture and put a horse or others in the hole
2.Then try to push it into the Block. How you can see the horse enters inside the Block and dies suffocated
Added Labels: skeleton_horse zombie_horse
Removed Labels: skeleton-horse zombie-horse


This is works as intended. Horses/donkeys/etc. have a collision box with a size of 1.4x1.6 meters (a block is 1 m long/wide in Minecraft). Because of this, horses CANNOT actually fit in 1x2 areas. If one is in such an area, they are actually partially inside the walls of the hole, and as such, they can be pushed into the walls, because the sides of blocks don't collide with things that are already partially inside them.