The 'satellite-maintain upgrade list-versions' command does not show the next upgradable version in Red Hat Satellite 6.X due to the incorrect version of rubygem-foreman_maintain package installed on the Satellite Server

Issue

• When attempting to update Red Hat Satellite 6.X to the latest minor version 6.X.z, satellite-maintain command exits with the following message:

  [root@satellite ~]# satellite-maintain upgrade list-versions
  Checking for new version of satellite-maintain...
  Nothing to update, can't find new version of satellite-maintain.
  

• When attempting to upgrade Red Hat Satellite 6.X to the next major release i.e. 6.X, the Red Hat Satellite 6.X version is not available :

  [root@satellite ~]# satellite-maintain upgrade list-versions
  6.X.z