$ git clone -n https://src.fedoraproject.org/rpms/python-pycayennelpp.git /var/lib/mock/f45-build-32131-657/root/chroot_tmpdir/scmroot/python-pycayennelpp
Cloning into '/var/lib/mock/f45-build-32131-657/root/chroot_tmpdir/scmroot/python-pycayennelpp'...
$ git fetch origin 79737c1f0f5bd11709823fa4f1430c5a6ddc50dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pycayennelpp
 * [new ref]         79737c1f0f5bd11709823fa4f1430c5a6ddc50dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 79737c1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild