Prevent basic auth login appearing when creating user
Prevent basic auth login appearing when creating user

This was trying to authenticate with basic auth, even if the user was
already authenticated with a cookie.

mysociety/popit,mysociety/popit,openstate/popit,openstate/popit,openstate/popit,mysociety/popit,Sinar/popit,Sinar/popit,mysociety/popit,mysociety/popit,Sinar/popit,Sinar/popit,openstate/popit