Answering my own question about where it’s “remembering” the flavor from. Here’s how I got the answer:
[root@foreman-02 ~]# which foremanctl
/usr/bin/foremanctl
[root@foreman-02 ~]# cat /usr/bin/foremanctl | grep ^OBSAH_STATE
OBSAH_STATE=/var/lib/foremanctl
[root@foreman-02 ~]# cat /var/lib/foremanctl/parameters.yaml
features:
- hammer
flavor: katello
foreman_initial_admin_password: changeme
foreman_initial_admin_username: admin
foreman_initial_location: MyCity
foreman_initial_organization: MyOrg
[root@foreman-02 ~]#