Bug 1075883

Description of problem:
When test the virt-who +ESX5.5 against stage candlepin. After the host/guest association has been send to stage candlepin. In the stage web UI, The hypervisor can't subscribe the Instance base subscription.

Version-Release number of selected component (if applicable):
subscription-manager-1.10.14-4.el7.x86_64
python-rhsm-1.10.12-1.el7.x86_64
virt-who-0.8-12.el7.noarch

How reproducible:
Always

Steps to Reproduce:
1. Prepare RHEL7.0 with latest subscription-manager and virt-who installed.
It has been registered to stage candlepin with username/password:stage_sam_test/redhat
virt-who run normally.
ESX host has been added to vcenter, And ESX host has two guests.
Our test env as the following:
vCenter: 10.66.78.16
ESX host 1: 10.66.13.181

2. Configure virt-who in ESX mode as the following:
[root@hp-z220-03 ~]# cat /etc/sysconfig/virt-who 
    # Enable debugging output.
    VIRTWHO_DEBUG=1
    VIRTWHO_INTERVAL=10
    # Register ESX machines using vCenter
    VIRTWHO_ESX=1
    # Option for ESX mode
    VIRTWHO_ESX_OWNER=7067527
    VIRTWHO_ESX_ENV=Library
    VIRTWHO_ESX_SERVER=10.66.78.16
    VIRTWHO_ESX_USERNAME=administrator
    VIRTWHO_ESX_PASSWORD=qwer1234P!

3. Register one of the guest to stage candlepin.
# subscription-manager register --username=stage_sam_test --password=redhat

4. Monitor the rhsm log, the host/guest mapping info has send to stage candlepin
# tail -f /var/log/rhsm/rhsm.log
2014-03-13 10:40:42,736 [DEBUG]  @virt-who.py:528 - Virt-who is running in esx mode
2014-03-13 10:40:42,736 [DEBUG]  @virt-who.py:535 - Starting infinite loop with 10 seconds interval and event handling
2014-03-13 10:40:47,904 [DEBUG]  @subscriptionmanager.py:109 - Sending update in hosts-to-guests mapping: {44454c4c-4200-1034-8039-b8c04f503258: [4200ce86-d3dd-d5f5-dc84-d68f92482ae0, 42002108-4bd6-86da-6253-e10d2e9cdbdf]}

5. Open the stage web UI (https://access.stage.redhat.com/management/consumers/)
with username/password:stage_sam_test/redhat

6. Go to Subscription-->Subscription management-->Units-->Hypervisors, click the 44454c4c-4200-1034-8039-b8c04f503258, open this hypervisor's main page.

7. Click on "Attach a subscription", choose the instance base subscription which name is"Red Hat Enterprise Linux Server, Premium (Physical or Virtual Nodes)", Then click the button of "Attach selected".

Actual results:
Failed to subscribe the instance base subscription, it will display the remind messages in the stage web UI,please see as the following or see the screenshot1 in the attchment.
"Too many content sets for certificate Red Hat Enterprise Linux Server, Premium (Physical or Virtual Nodes). A newer client may be available to address this problem. See kbase https://access.redhat.com/knowledge/node/129003 for more information."

Expected results:
subscribe the instance base subscription successfully.

Additional info:
1. The guest can subscribe the instance base subscription in both Stage Web UI and in Command Line. please see the screenshot2 in the attachment.
2. Hypervisor can subscribe any other subscriptions successfully.
3. The instance base subscription's attribution as the following:
Subscription Name: Red Hat Enterprise Linux Server, Premium (Physical or Virtual Nodes)
Provides:          Red Hat Enterprise Linux 7 Public Beta
                   Red Hat Enterprise Linux Resilient Storage (for RHEL Server) - Extended Update Support
                   Red Hat Software Collections (for RHEL Server)
                   Red Hat Enterprise Linux High Availability (for RHEL Server) - Extended Update Support
                   Red Hat EUCJP Support (for RHEL Server) - Extended Update Support
                   Red Hat Enterprise Linux Server - Extended Update Support
                   Red Hat Beta
                   Red Hat Enterprise Linux High Performance Networking (for RHEL Server) - Extended Update Support
                   Red Hat Enterprise Linux Scalable File System (for RHEL Server) - Extended Update Support
                   Red Hat Enterprise Linux Load Balancer (for RHEL Server) - Extended Update Support
                   Red Hat Enterprise Linux Server
                   Red Hat Software Collections Beta (for RHEL Server)
                   Red Hat S-JIS Support (for RHEL Server) - Extended Update Support
SKU:               RH00003
Contract:          10318836
Pool ID:           8a99f9844369611601436be9129e44e9
Available:         78
Suggested:         1
Service Level:     Premium
Service Type:      L1-L3
Subscription Type: Instance Based
Ends:              01/05/2015
System Type:       Physical