When a zombie is breaking a door, the door reveals its breaking texture meaning its currently breaking. But when replacing the door that's currently breaking with a different door its not gonna reset the breaking texture and will keep breaking where it left at with the past door.

How to reproduce

Start by using this command to increase the chances of a zombie attacking the door.

/execute as @e[type=zombie,tag=!modified] run data modify entity @s CanBreakDoors set value 1

Then trap the zombie in a small base and lock it with a door so it starts breaking it.

Replace the door with a different door while its breaking, you will notice that the breaking texture doesn't reset and keeps on going even though its a different door.

Observations: Replacing a door that's currently breaking doesn't reset the breaking texture.
Expectations: Since its a different door, it should reset the breaking texture rather than going on.

Discovered while testing MC-270960.