Bug: users added with their email aren't connected to their UAA account

[echappen]

Scenario:

1. A user creates a Cloud.gov account through their gsa secureauth account.
2. User is added to an org by their org manager
3. User is given the role of "Org Manager"

Expected behavior:
User should see all users on the Manage Users page for the org they were added to.

Actual Behavior:
User is not seeing any users on that page.

(example of this scenario)

Theory:

When we use the secureauth username [first name][middle initial][last name] to add this person to the OrgManager role using the cf cli, they are then able to view users and an additional account shows up for them:

Example:

cf set-org-role [username] 18f-stratos-rebuild OrgManager

This suggests that the email used for adding the user through the app is not being connected to their core UAA account somehow.

Acceptance Criteria

• a user can be added through the app and is able to see proper users when given the org role of "Org Manager"