$ git clone -n https://src.fedoraproject.org/rpms/perl-IPTables-Parse.git /var/lib/mock/f45-build-24242-602/root/chroot_tmpdir/scmroot/perl-IPTables-Parse
Cloning into '/var/lib/mock/f45-build-24242-602/root/chroot_tmpdir/scmroot/perl-IPTables-Parse'...
$ git fetch origin a85ff57aec636deaa8986256ddfb6a55e0b64ec3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IPTables-Parse
 * [new ref]         a85ff57aec636deaa8986256ddfb6a55e0b64ec3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a85ff57 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild