Bat spawn egg spawns bat inside non-full block

Bat spawn egg spawns bat inside non-full block.

Affected blocks:

• Soul sand

• Honey block

• Farmland

• Drit path

• Snow layers 8

• Slab

• Sea pickle

• Big dripleaf

• Chorus plant

• Chest

• Trapped chest

• Ender chest

• Cactus

• Chain(axis: x, z)

• Enchanting table

• End portal frame

• Flower pot

• Skull or head

• Grindstone

• Stonecutter

• Bell

• Lantern

• Soul lantern

• Campfire

• Soul campfire

• Candle

• Small amethyst bud

• Medium amethyst bud

• Large amethyst bud

• Amethyst cluster

• Pointed dripstone

• Hopper

• Lectern

• Daylight detector

• Turtle egg

• Conduit

• Cake

• Brewing stand

• Mud

• Sculk shrieker

• Sculk sensor

• Carpet

• Moss carpet

• Flower pot

• Lightning rod(facing: east, west, north, south)

• End rod(facing: east, west, north, south)

• Calibrated sculk sensor

Use the following command:

Bat(Reconfirmed in 19w14a)

/give @p bat_spawn_egg{EntityTag:{id:"minecraft:bat",NoAI:1b}} 1

Code analysis

Based on 1.11 decompiled using MCP 9.35 rc1

For bats the method net.minecraft.entity.passive.EntityBat.onUpdate() is causing this which sets their y position to floor(y) + 1 - height if it is hanging.