Upstart is still installed on desktop Xenial systems, even on a fresh installation; the unity-greeter package depends on it. Attempting to "apt-get remove upstart" also offers to remove the "ubuntu-desktop", "unity", and "unity-greeter" packages, along with the "upstart" package.
So this bug prevents the use of Puppet from correctly managing any services on a Xenial desktop system.
Upstart is still installed on desktop Xenial systems, even on a fresh installation; the unity-greeter package depends on it. Attempting to "apt-get remove upstart" also offers to remove the "ubuntu-desktop", "unity", and "unity-greeter" packages, along with the "upstart" package.
So this bug prevents the use of Puppet from correctly managing any services on a Xenial desktop system.