Zombies will wandering in village during night, but don't try to entering houses

During night, zombies will wandering in villages, but they don't try to entering houses, making them had no chance to defeat villagers.

How To reproduce

1. Find a village
2. Kill the golem 
3. Set the time to midnight
4. Summoning a zombie with can destory door

→Zombie will wandering in village, when they reach the door, they will hit the door with in a moment, then give up, making zombies had no chance to defeat villager.