Enabling puppet integration without puppetca on content proxy

O.K. I have checked all the options from my old tutorial Installing a puppet smart proxy against a katello main server and noticed that --puppet-server-ca is true by default. So now I get a successful foreman-installer run with:

[root@foreman9-content ~]# foreman-installer --enable-puppet \
  --foreman-proxy-puppet true \
  --puppet-server true \
  --foreman-proxy-puppetca false \
  --puppet-ca-server foreman8.example.com \
  --puppet-server-ca false