Single radio button showing for change custodian journey

[bentateart]

When an Admin user needs to change the custodian of a register, when the custodian is the only member of a team, there is a single checkbox displayed on the page. The page should explain to the user that there are no other members of the team to change the custodianship to, along with a link to invite someone external.

URL:

https://managing-registers-staging.cloudapps.digital/teams/15/team_members/51/edit

Steps to recreate:

1. Login as an admin
2. Click on 'Manage custodians'
3. Click on 'View team'
4. Click on 'Change' in the table row alongside the custodian's name

Expected result:

https://projects.invisionapp.com/d/main#/console/10972863/248267834/preview

Actual result:

[bentateart]

Gurinder has another option for this one.

[gtdata]

Add third radio button for New custodian
Edit button title from change to confirm

Button must take user to the add a new custodian page
Default button must be on the current custodian

[gtdata]

Replace Invite someone external as custodian
To:
Send invite to new custodian

[elliecraven]

This isn't required for this iteration - something for next version

Before we incorporate it into the next iteration, we need to do some thinking around what the steps should be for nominating, inviting and approving a new custodian. I'm not sure the current pattern is robust enough for the degree of responsibility a new custodian would be accepting.