$ git clone -n https://src.fedoraproject.org/rpms/python-croniter.git /var/lib/mock/f45-build-30137-643/root/chroot_tmpdir/scmroot/python-croniter
Cloning into '/var/lib/mock/f45-build-30137-643/root/chroot_tmpdir/scmroot/python-croniter'...
$ git fetch origin 9ed62ba6282bd3adc4a5beac88ed29485e2f7e04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-croniter
 * [new ref]         9ed62ba6282bd3adc4a5beac88ed29485e2f7e04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ed62ba Update to v6.2.4