Foreman and Fedora Silverblue clients

Is there a way to tell foreman the depth for the mirror? Like you can do it with
ostree --repo=repo pull --depth 1 --mirror coreos:fedora/x86_64/coreos/stable?

At the moment I’ve added
fedora/x86_64/coreos/stable
to the Include Refs but it takes a day and stops with a 502 Error because there is a missing link/ref