Mobs entering a composter never leave the composter

I think the mobs AI doesn't register the walls as a new block but the cauldron's walls are registered.

and if zombies are pathfinding to a villager before falling/spawning in they jump out

Confirmed for 19w08a

Confirmed for 19w011a

I found an easy fix. just put a trap door on the top so you can open it, but villagers can't get stuck.

Confirmed for 19w11b

Confirmed for 19w12a

Still in 19w13a

Still happening in 19w13b

can reproduce in 19w14a