Puppet's flawed implementation of the host type

1-hostfile

127.0.0.1       localhost.localdomain   localhost.localdomain   localhost4      localhost4.localdomain4 localhost       puppet-eli
::1     localhost.localdomain   localhost.localdomain   localhost6      localhost6.localdomain6 localhost       puppet-eli

2-hostfile.pp

host { 'localhost.localdomain':
  ensure       => 'present',
  host_aliases => ['localhost.localdomain', 'localhost4', 'localhost4.localdomain4', 'localhost', 'puppet-eli'],
  ip           => '127.0.0.1',
  target       => '/etc/hosts',
}
# output of `puppet resource host` when 1-hostfile is /etc/hosts
# notice that there is no entry for ::1 even though the domains differ (e.g. localhost6)

3-hostfile

127.0.0.1       localhost.localdomain   localhost.localdomain   localhost4      localhost4.localdomain4 localhost       puppet-eli
::1     test    localhost.localdomain   localhost.localdomain   localhost6      localhost6.localdomain6 localhost       puppet-eli

4-hostfile.pp

host { 'localhost.localdomain':
  ensure       => 'present',
  host_aliases => ['localhost.localdomain', 'localhost4', 'localhost4.localdomain4', 'localhost', 'puppet-eli'],
  ip           => '127.0.0.1',
  target       => '/etc/hosts',
}
host { 'test':
  ensure       => 'present',
  host_aliases => ['localhost.localdomain', 'localhost.localdomain', 'localhost6', 'localhost6.localdomain6', 'localhost', 'puppet-eli'],
  ip           => '::1',
  target       => '/etc/hosts',
}
# output of `puppet resource host` when 3-hostfile is /etc/hosts