$ git clone -n https://src.fedoraproject.org/rpms/python-warlock.git /var/lib/mock/f45-build-33613-671/root/chroot_tmpdir/scmroot/python-warlock
Cloning into '/var/lib/mock/f45-build-33613-671/root/chroot_tmpdir/scmroot/python-warlock'...
$ git fetch origin 514a56e743195c7e74202a00b90f73ff7a9b7335:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-warlock
 * [new ref]         514a56e743195c7e74202a00b90f73ff7a9b7335 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 514a56e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild