[Core] "Customize Schema Alias" has broken macro

[jobegrabber]

Link to the page(s) on docs.getdbt.com requiring updates

https://docs.getdbt.com/guides/customize-schema-alias?step=5

Tell us more about this update

On this page of the guide "Customize dbt models database, schema, and alias" there is a macro code listed that should enforce the usage of custom schemas.

However, I cannot successfully execute dbt build when I configure the custom schema inside a model config in a properties.yml file within a model's directory.
From logging the input to the macro, it seems dbt evaluates the model twice; first without a custom schema, and only then with the custom schema set from the properties file.

If I specify the custom schema either in dbt_project.yml or inside the model's definition (.sql file), the custom schema is set in every call to the macro:

Works:

# dbt_project.yml
models:
  +schema: custom

Works:

# models/model.sql
{{ config(schema="custom") }}

Does not work:

# models/properties.yml
models:
- name: model
  config:
    schema: custom

Reviewers/Stakeholders/SMEs

I'm not sure, sorry.

Related GitHub issues

No response

Additional information

$ dbt --version
Core:
  - installed: 1.10.11
  - latest:    1.10.11 - Up to date!

Plugins:
  - snowflake: 1.10.2 - Up to date!