$ git clone -n https://src.fedoraproject.org/rpms/python-snappy.git /var/lib/mock/f45-build-32989-665/root/chroot_tmpdir/scmroot/python-snappy
Cloning into '/var/lib/mock/f45-build-32989-665/root/chroot_tmpdir/scmroot/python-snappy'...
$ git fetch origin ff3e463889a889b6220a8f359ff461e6cebebacb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-snappy
 * [new ref]         ff3e463889a889b6220a8f359ff461e6cebebacb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff3e463 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild