I'm not sure if this is a bug, but such logic is not described:
in settings.toml with setting environments=True:

[default.database]
DB_HOST = "127.0.0.1"
DB_PORT = "5432"
DB_ADDRES = "@format {this.database.DB_HOST}:{this.database.DB_PORT}"

Then, if the value DB_PORT will be overridden using the environment variable, DB_PORT value will be equal to the value from the environment variable, but the DB_ADDRES value will be created from the original DB_PORT equal 5432

As I understand it, all variables using the marker @format occur before being overridden using environment variables. But, since the marker @format is a dynaconf feature and has nothing to do with the .toml format, this logic is not described anywhere, and can this be changed?