Description of problem:
When running rhn-check on a client running Fedora messages of the form:

Updated system release from 24 to 24

The Red Hat Satellite Update Agent has detected a change in the base version of the operating system running on your system, additionaly you are subscribed to a custom channel as your base channel. Due to this configuration your channel subscriptions will not be altered.

are created in the logs.


Version-Release number of selected component (if applicable):


How reproducible:
100%

Steps to Reproduce:
1. run rhn-check on a fedora host
2. Browse to the history events of a system


Actual results:
Client:

[root@provisioner rhn]# rhn_check -vvvvv
D: opening  db environment /var/lib/rpm cdb:0x401
D: opening  db index       /var/lib/rpm/Packages 0x400 mode=0x0
D: locked   db index       /var/lib/rpm/Packages
D: opening  db index       /var/lib/rpm/Providename 0x400 mode=0x0
D: rpcServer: Calling XMLRPC registration.upgrade_version
D: do_call packages.checkNeedUpdate('rhnsd=1',){}
D: Called refresh_rpmlist
Updating package profile
D: rpcServer: Calling XMLRPC registration.welcome_message
D: rpcServer: Calling XMLRPC registration.update_packages
D: local action status: (0, 'rpmlist refreshed', {})
D: rpcServer: Calling XMLRPC registration.welcome_message
D: closed   db index       /var/lib/rpm/Packages
D: closed   db index       /var/lib/rpm/Providename
D: closed   db environment /var/lib/rpm


XMLRPC Log on the server:
2016/09/28 02:04:13 -00:00 7664 10.7.8.30: xmlrpc/registration.upgrade_version(1000010002, '23')
2016/09/28 02:04:13 -00:00 7665 10.7.8.30: xmlrpc/queue.get(1000010002, 2, 'checkins enabled')
2016/09/28 02:04:13 -00:00 7666 10.7.8.30: xmlrpc/registration.welcome_message('lang: None',)


2016/09/28 02:05:24 -00:00 8201 10.7.2.42: xmlrpc/registration.upgrade_version(1000010000, '24')
2016/09/28 02:05:24 -00:00 7972 10.7.2.42: xmlrpc/queue.get(1000010000, 2, 'checkins enabled')
2016/09/28 02:05:25 -00:00 7664 10.7.2.42: xmlrpc/registration.welcome_message('lang: None',)