is migrate --run-syncdb supported?

[disco-23]

When Django runs tests (via the test management command) it creates a test database by using migrate --run-syncdb (link to Django source)

But in my project, this results in a non-partitioned table in my test database.

My model inherits from PostgresPartitionedModel and regular migrate creates a partitioned table as expected. I created migrations with pgmakemigrations but I assume this is irrelevant since --run-syncdb doesn't use migrations.

Is this scenario supposed to be supported?