Setting to replicate:

• Foreman 1.24.2
• Katello 3.14.1
• Ubuntu 18.04 defined as an OS in Foreman
• Puppet 6 on managed client with Ubuntu 18.04
• "Ignore facts for operating system" -> "no" (default)

Problem: After a puppet run on the registered client, the string that the client sends back for the value of "os -> distro -> codename" is set as the "release name" for the OS that the client is attached to in Foreman. The next operation that uses that value, e.g. rendering a preseed-template for another machine with the same OS uses the new value sent by the client.

For a demo, see attached screencast.

Expected behaviour: A client should never be able to overwrite any administrative setting in Foreman.

Workaround: Set "Ignore facts for operating system" under "Setting, Privisioning" to "yes".