[BLOCKING] minecraft:transformation component does not keep the original entity's owner

Build: 1.2.2 Build 513712
Summary:
When an entity uses the transform component its owner tag is not transferred to the new entity.

Impact:
This is preventing us from implementing a mechanic in our 12 days of Minecraft paid map.

Steps to reproduce:
1. Add the following to egg.json:
{{
"minecraft:transformation": {
"into": "minecraft:zombie",
"delay":

{ "value": 0.1 }

}
}}
2. Throw an egg (its owner will be the player who threw it).
3. Inspect the NBT data of the created zombie (Using a tool such as MCC Tool Chest PE).

Expected Behavior:
The zombie's owner should be the same as the egg's owner.

Observed Behavior:
The zombie does not have an owner.