[Bug] If you are adding a role to a user, pick an organization, then change to partner, without changing the organization, it picks the partner with the same ID. They should be forced to pick from the partner list

[ruestitch]

Summary

Force superuser to actively pick a partner if partner is the role.

Why?

Mitigate potential for mis-assignment

Details

Reproduction

You do have to go out of your way to make this happen

sign in as superadmin@example.com
pick users
New user
fill in a new user name and email
Choose organization from the role type
Choose a resource
Switch to partner
Save (without changing the resource)

The user is given the role partner with the partner who has the resource ID of the organization that was initially chosen.

Desired behaviour

Clear the resource if the role type is changed

Criteria for completion

• behaviour as described
• tests that confirm the behaviour
• no user guide update required