$ git clone -n https://src.fedoraproject.org/rpms/perl-MooX-Cmd.git /var/lib/mock/f45-build-24968-607/root/chroot_tmpdir/scmroot/perl-MooX-Cmd
Cloning into '/var/lib/mock/f45-build-24968-607/root/chroot_tmpdir/scmroot/perl-MooX-Cmd'...
$ git fetch origin a8fd7ac0fd551a3f0de00c1bd2ca6672497f2455:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MooX-Cmd
 * [new ref]         a8fd7ac0fd551a3f0de00c1bd2ca6672497f2455 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8fd7ac Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild