Description of problem:

User has created account roles with managed policies successfully using the command

$ rosa create account-roles --hosted-cp 

The ROSA cluster wizard doesn't list or show any support and worker roles after selecting the account role with managed polices from the installer role drop-down. 

CLI command result on account-roles

Steps to reproduce:
Pre-condition : Create account-roles with managed policies.

1. Launch OCM UI.
2. Open ROSA Wizard.
3. Select control type as "Hosted".
4. Proceed to next step, choose aws infrastructure account.
5. Select installer account-role with managed policies.
6. View the behavior of support role and worker roles.

Actual results:

After selection of installer role ARN with managed policies, both support role and worker role not populated respective managed policies . Also note that the back end request correctly filtered the managed policies as per network response.

Expected results:

The selection of installer role ARN with managed policies should automatically populate both support role and worker role of respective managed policies .