Description of problem:
Using rhn-migrate-classic-to-rhsm to migrate a rhel7 system registered to a Satellite server to a Subscription Management server is throwing the following traceback...

2014-03-11 11:13:37,537 [INFO] rhn-migrate-classic-to-rhsm @connection.py:674 - Connection Built: host: subscription.rhn.stage.redhat.com, port: 443, handler: /subscription
2014-03-11 11:13:37,538 [ERROR] rhn-migrate-classic-to-rhsm @managercli.py:156 - Exception caught in rhm-migrate-classic-to-rhsm
2014-03-11 11:13:37,538 [ERROR] rhn-migrate-classic-to-rhsm @managercli.py:157 - "Unknown feature: 'IDENTITY'"
Traceback (most recent call last):
  File "/usr/sbin/rhn-migrate-classic-to-rhsm", line 75, in <module>
    sys.exit(abs(main() or 0))
  File "/usr/sbin/rhn-migrate-classic-to-rhsm", line 66, in main
    return migrate.MigrationEngine().main()
  File "/usr/share/rhsm/subscription_manager/migrate/migrate.py", line 778, in main
    self.enable_extra_channels(subscribed_channels)
  File "/usr/share/rhsm/subscription_manager/migrate/migrate.py", line 710, in enable_extra_channels
    repolib.RepoLib(uep=self.cp).update()
  File "/usr/share/rhsm/subscription_manager/repolib.py", line 44, in __init__
    self.identity = inj.require(inj.IDENTITY)
  File "/usr/share/rhsm/subscription_manager/injection.py", line 98, in require
    return FEATURES.require(feature, *args, **kwargs)
  File "/usr/share/rhsm/subscription_manager/injection.py", line 68, in require
    raise KeyError("Unknown feature: %r" % feature)
KeyError: "Unknown feature: 'IDENTITY'"



This is detected by an automated test.  Below is the trace of the automated test showing the stdin/stdout/stderr...

201403111113:18.464 - FINE: ssh root.redhat.com rhn-migrate-classic-to-rhsm.tcl '-n -f --serverurl=https://subscription.rhn.stage.redhat.com:443/subscription' admin nimda rhel7beta redhat null null null (com.redhat.qe.tools.SSHCommandRunner.run)
201403111113:37.718 - FINE: Stdout: 
spawn rhn-migrate-classic-to-rhsm -n -f --serverurl=https://subscription.rhn.stage.redhat.com:443/subscription
Red Hat username: admin
Red Hat password: 
Subscription Service username: rhel7beta
Subscription Service password: 

Retrieving existing RHN Classic subscription information...

+-----------------------------------------------------+
System is currently subscribed to these RHN Classic Channels:
+-----------------------------------------------------+
rhel-x86_64-server-7
rhel-x86_64-server-7-debuginfo
rhel-x86_64-server-fastrack-7-debuginfo
rhel-x86_64-server-fastrack-7
rhel-x86_64-server-hpn-7-debuginfo
rhel-x86_64-server-hpn-7
rhel-x86_64-server-optional-7
rhel-x86_64-server-optional-fastrack-7
rhel-x86_64-server-rh-common-7
rhel-x86_64-server-supplementary-7

+-----------------------------------------------------+
Installing product certificates for these RHN Classic channels:
+-----------------------------------------------------+
rhel-x86_64-server-7
rhel-x86_64-server-7-debuginfo
rhel-x86_64-server-fastrack-7-debuginfo
rhel-x86_64-server-fastrack-7
rhel-x86_64-server-hpn-7-debuginfo
rhel-x86_64-server-hpn-7
rhel-x86_64-server-optional-7
rhel-x86_64-server-optional-fastrack-7
rhel-x86_64-server-rh-common-7
rhel-x86_64-server-supplementary-7

Product certificates installed successfully to /etc/pki/product.

Preparing to unregister system from RHN Classic...
System successfully unregistered from RHN Classic.

Attempting to register system to Red Hat Subscription Management...
The system has been registered with ID: 971fa001-588a-4318-b514-0951fdee217f 
System 'jsefler-7.usersys.redhat.com' successfully registered to Red Hat Subscription Management.

"Unknown feature: 'IDENTITY'"
 (com.redhat.qe.tools.SSHCommandRunner.runCommandAndWait)
201403111113:37.746 - FINE: Stderr:  (com.redhat.qe.tools.SSHCommandRunner.runCommandAndWait)
201403111113:37.747 - FINE: ExitCode: 255 (com.redhat.qe.tools.SSHCommandRunner.runCommandAndWait)



Version-Release number of selected component (if applicable):
[root@jsefler-7 ~]# subscription-manager version
server type: This system is currently not registered.
subscription management server: Unknown
subscription-manager: 1.10.14-4.el7
python-rhsm: 1.10.12-1.el7


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:
The traceback does NOT occur when only a basechannel is being consumed on the rhn/satellite server.  Adding child channels leads to the bug described above.