$ git clone -n https://src.fedoraproject.org/rpms/python-crochet.git /var/lib/mock/f45-build-30156-643/root/chroot_tmpdir/scmroot/python-crochet
Cloning into '/var/lib/mock/f45-build-30156-643/root/chroot_tmpdir/scmroot/python-crochet'...
$ git fetch origin ed087f9930b0f922bd9ea5abaedc4f642ce322e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-crochet
 * [new ref]         ed087f9930b0f922bd9ea5abaedc4f642ce322e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed087f9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild