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+++ This bug was initially created as a clone of Bug #760591 +++

Description of problem:
Even after hours or days a registered+subscribed system will still show Never Checked In on the Systems page of headpin.

Version-Release number of selected component (if applicable):
katello-headpin-all-0.1.111-1.el6.noarch

Steps to Reproduce:
1. Register + Subscribe a system
2. Restart rhsmcertd on the registered consumer
3. Run subscription-manager refresh
4. Go to https://headpin.fqdn/headpin
5. Navigate to the systems page
  
Actual results:
Note that under System Events, Checked In remains "Never Checked In".

Expected results:
A date / time stamp of last check in.

Katello is sending cp-user as the OAuth header for both user and consumer level access. This means that when rhsmcertd runs in step 2, katello is connecting to candlepin as a TrustedUserPrincipal which is NOT a ConsumerPrincipal hence there is no lastcheckin to update. 

We changed line 322 of user.rb to be self.current.cp_oauth_header instead of 
{ 'cp-user' => self.current.username }

That one change makes katello talk to candlepin with the correct headers,
and users i.e. TrustedUserPrincipal and TrustedConsumerPrincipal.

Fixed in katello commit dd8719985c6c475741cd5edd0e448827b51809f9. You will need to wait for katello-commmon 0.147 to see this fix.

Verified

getting rid of 6.0.0 version since that doesn't exist