EE-Port: Alternative fix for 422 when using standard login with ldap enabled
This is an EE-Port of: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/13103
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This is an EE-Port of: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/13103