$ git clone -n https://src.fedoraproject.org/rpms/python-pybeam.git /var/lib/mock/f45-build-32081-657/root/chroot_tmpdir/scmroot/python-pybeam
Cloning into '/var/lib/mock/f45-build-32081-657/root/chroot_tmpdir/scmroot/python-pybeam'...
$ git fetch origin bed2249ce988b21b85f8804c82b5fd2447269772:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pybeam
 * [new ref]         bed2249ce988b21b85f8804c82b5fd2447269772 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bed2249 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild