When using runserver_plus from the django-extensions package (for serving a development instance with a TLS certificate), I noticed the DEBUG setting was not set correctly, which resulted in static files not being served correctly.
Before this change, each order row needed an additional database query just to
resolve the customer id (integer) to customer identifier (string).
With this change, django does a database JOIN.
It took a little bit of searching to figure out that in the dev environment, by
default, celery tasks are run synchronously, but periodic tasks are not run at
all.
