Description of problem:
System purpose status can not be shown when system is unregistered 

Version-Release number of selected component (if applicable):
subscription-manager-1.23.8-1.el8.x86_64
tfm-rubygem-katello-3.9.0-0.2.rc2.el7sat.noarch


How reproducible:
always

Steps to Reproduce:
1. Run 'subscription-manager status' on RHEL-8.0-Snapshot-1.0 before registration:

[root@dell-r730-001-guest03 ~]# subscription-manager status
+-------------------------------------------+
   System Status Details
+-------------------------------------------+
Overall Status: Unknown

Traceback (most recent call last):
  File "/usr/sbin/subscription-manager", line 11, in <module>
    load_entry_point('subscription-manager==1.23.8', 'console_scripts', 'subscription-manager')()
  File "/usr/lib64/python3.6/site-packages/subscription_manager/scripts/subscription_manager.py", line 85, in main
    return managercli.ManagerCLI().main()
  File "/usr/lib64/python3.6/site-packages/subscription_manager/managercli.py", line 2879, in main
    ret = CLI.main(self)
  File "/usr/lib64/python3.6/site-packages/subscription_manager/cli.py", line 183, in main
    return cmd.main()
  File "/usr/lib64/python3.6/site-packages/subscription_manager/managercli.py", line 507, in main
    return_code = self._do_command()
  File "/usr/lib64/python3.6/site-packages/subscription_manager/managercli.py", line 2860, in _do_command
    print(_("System Purpose Status: %s\n") % syspurpose_service.get_syspurpose_status())
  File "/usr/lib64/python3.6/site-packages/rhsmlib/services/syspurpose.py", line 32, in get_syspurpose_status
    consumer = self.cp.getConsumer(self.identity.uuid)
  File "/usr/lib64/python3.6/site-packages/rhsm/connection.py", line 1179, in getConsumer
    return self.conn.request_get(method)
  File "/usr/lib64/python3.6/site-packages/rhsm/connection.py", line 739, in request_get
    return self._request("GET", method, headers=headers)
  File "/usr/lib64/python3.6/site-packages/rhsm/connection.py", line 765, in _request
    info=info, headers=headers)
  File "/usr/lib64/python3.6/site-packages/rhsm/connection.py", line 643, in _request
    self.validateResponse(result, request_type, handler)
  File "/usr/lib64/python3.6/site-packages/rhsm/connection.py", line 702, in validateResponse
    raise RestlibException(response['status'], error_msg, response.get('headers'))
rhsm.connection.RestlibException: HTTP error (404 - Not Found): Consumer with id None could not be found.
[root@dell-r730-001-guest03 ~]# syspurpose show
{
  "service_level_agreement": "",
  "addons": [
    ""
  ],
  "usage": "",
  "role": ""
}


2. Register the system against Satellite6.5-snapshot4.0:

[root@dell-r730-001-guest03 ~]# subscription-manager  register
Registering to: ibm-ls22-03.rhts.eng.brq.redhat.com:443/rhsm
Username: admin                                                                                                                                                                          
Password: 
The system has been registered with ID: 936a0302-b0df-4f21-90bb-0161161c343e
The registered system name is: dell-r730-001-guest03.dsal.lab.eng.rdu2.redhat.com
Failed to synchronize cache for repo 'myrepo_0', ignoring this repo.

3. Run 'subscription-manager status' after registration:

[root@dell-r730-001-guest03 ~]# subscription-manager status
+-------------------------------------------+
   System Status Details
+-------------------------------------------+
Overall Status: Invalid

Red Hat Enterprise Linux for x86_64 High Touch Beta:
- Not supported by a valid subscription.

System Purpose Status: Unknown



Actual results:
As step 1, system purpose status can not be displayed when system is unregistered.

Expected results:
The output of step 1, should be like:

# subscription-manager status
+-------------------------------------------+
   System Status Details
+-------------------------------------------+
Overall Status: Unknown

System Purpose Status: Unknown

Additional info:
The attachment is rhsm.log