Miscellany
public text v1 · immutablep = People.by_username('mmcgrath')
p.emails['primary'] = None
p.emails['primary'] = PersonEmails(email='mmcgrath@fedoraproject.org', purpose='primary')
session.flush()
AssertionError: Dependency rule tried to blank-out primary key column 'person_emails.person_id' on instance 'PersonEmails@0xaa065ec'