World Builder: Appearance does not seem to persist

Issue
When using the world builder to edit or add the appearance, on an Area or a Point of Interest, the value does not seem to persist.

The value is certainly present in the POST and PATCH requests but it is not returned in the GET responses.

These are the associated endpoints:

POST /rest/v1/template_areas
PATCH /rest/v1/template_points_of_interest

GET /rest/v1/template_areas
GET /rest/v1/template_points_of_interest

Steps to replicate
Create / Edit a world
Create / Edit an Area or a Point of Interest
Enter in a value for the appearance
Submit
Reopen the Area or Point of Interest
The appearance textarea / input field will be empty.

Potential Solution
Return the appearance property in the responses for these endpoints
GET /rest/v1/template_areas
GET /rest/v1/template_points_of_interest