$ git clone -n https://src.fedoraproject.org/rpms/perl-Tie-Cycle.git /var/lib/mock/f45-build-27138-621/root/chroot_tmpdir/scmroot/perl-Tie-Cycle
Cloning into '/var/lib/mock/f45-build-27138-621/root/chroot_tmpdir/scmroot/perl-Tie-Cycle'...
$ git fetch origin 3cfbeac86eec6dc3a9c52ac6a0f42ff37f0af640:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Tie-Cycle
 * [new ref]         3cfbeac86eec6dc3a9c52ac6a0f42ff37f0af640 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3cfbeac Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild