When querying the API with the following, admin users are returned in addition to the users that have explicitly been associated with the organization.

http://localhost:3000/api/v2/users?organization_id=14

The UI correctly excludes the admin users when the search field has "organization_id = 14".

While I believe that passing the search string to the api would (probably) work, specifying the organization_id param should yield the same results.