$ git clone -n https://src.fedoraproject.org/rpms/perl-DBD-Multi.git /var/lib/mock/f45-build-22694-593/root/chroot_tmpdir/scmroot/perl-DBD-Multi
Cloning into '/var/lib/mock/f45-build-22694-593/root/chroot_tmpdir/scmroot/perl-DBD-Multi'...
$ git fetch origin 8cd7ad7807f534da14bdd076a82dead7f03d5ee9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DBD-Multi
 * [new ref]         8cd7ad7807f534da14bdd076a82dead7f03d5ee9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cd7ad7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild