agent notification package name is invalid

When I use class {'::ceilometer::agent::notification':} to configure openstack-ceilometer-notification service.
I see this erorr:

Error: Could not retrieve catalog from remote server: Error 400 on SERVER: Puppet::Parser::AST::Resource failed with error ArgumentError: Cannot alias Package[ceilometer-collector] to ["openstack-ceilometer-collector"] at /etc/puppet/modules/production/ceilometer/manifests/collector.pp:16; resource ["Package", "openstack-ceilometer-collector"] already declared at /etc/puppet/modules/production/ceilometer/manifests/collector.pp:16
Warning: Not using cache on failed catalog
Error: Could not retrieve catalog; skipping run

Then I find $agent_notification_package_name is the same as $collector_package_name. And I see an comment is:
# notification agent is included in collector package

But I find in http://pkgs.fedoraproject.org/git/openstack-ceilometer.git
there is an separate package for openstack-ceilometer-notification:

%package notification
Summary: OpenStack ceilometer notification agent
Group: Applications/System

Requires: %{name}-common = %{version}-%{release}

%description notification
OpenStack ceilometer provides services to measure and
collect metrics from OpenStack components.

The service init script is in this package:
%files notification
%{_bindir}/ceilometer-agent-notification
%{_initrddir}/%{name}-notification
%{_datarootdir}/ceilometer/%{name}-notification.upstart