Affects Version/s: Minecraft 1.14.1, Minecraft 1.14.2 Pre-Release 1
Fix Version/s: None
Chickens who jump up on top of Lecterns from are damaging themselves, even killing themselves if they do it enough times.
What I expected to happen was...:
the chickens should just jump on top of it.
What actually happened was...:
because of the weird hitbox of the Lecterns, which you can see by targeting it, the chickens will end up taking damage. Since they don't realize or don't know to not pathfind to the top of the block from behind, they take damage over and over and end up killing themselves.
Steps to Reproduce:
1. Make sure the chickens can't walk around the Lectern- this can be done by placing the Lectern down, then placing blocks at least high on the sides and back of the Lectern (into a pattern behind it leaving a 1x1x3 air blocks section) around it, so that it can't jump onto the Lectern and then up onto the wall.
2. Also place blocks in front of the Lectern, so the chicken can jump onto the Lectern but can't get out.
3. Now get seeds and stand on the blocks in of the Lectern, so that the chicken jumps up onto the Lectern, trying to get to you while you're holding seeds.