The `auto_accept_invites` module accepts every invite to a local user,
including the invite an admin sends to accept a knock. MSC4509 adds a
separate, opt-in auto-join for that case. This test pins the module's
behaviour on develop, so a deployment running
`auto_accept_invites.enabled: true` keeps joining knockers whatever
happens to the MSC4509 path.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>