I have a couple of private Koji instances I maintain that have the
Fedora repositories added as an external source via local mirrors.
When a Fedora releases reaches EoL, I follow along and to reduce disk
usage of the mirrors, I will delete the older releases. Recently F24
went this route but kojira still tries to run newRepo tasks against my
f24-build tag and fails because the mirror is gone. How can I stop
kojira for these older releases? I've tried lock-tag, but that didn't
seem to make any difference.