Empty window style in desert villages in some houses lets baby zombies attack villagers

The Bug

In desert villages, there are ''windows'' with air. But in some houses, they are just 1 block above the ground, which allows baby zombies to enter that and attack villagers. See in the screenshots.

Generic affected structures are:

desert_small_house_1

desert_small_house_2

desert_small_house_4

 

Profession affected structures are:

desert_library_1

desert_fletcher_house_1

desert_shepherd_house

 

It can be even reproduced in these during thunderstorms when villagers are working, because of MC-146143

To reproduce:

• Find or load one of listed structures

  /place template minecraft:village/desert/houses/{structure}

• Set the time to night
• Spawn a villager inside the house
• Spawn a baby zombie outside the house in front of the window
• → Observe that it enters through the window, and tries to attack the villager

Fix

Change the structures to have it at least 1,5 blocks above the ground or give the flowerpot a new property