$ git clone -n https://src.fedoraproject.org/rpms/cbios.git /var/lib/mock/f45-build-4261-331/root/chroot_tmpdir/scmroot/cbios
Cloning into '/var/lib/mock/f45-build-4261-331/root/chroot_tmpdir/scmroot/cbios'...
$ git fetch origin 0c4cc968bc1265cae5d6fa8be3a869cffd5d3593:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cbios
 * [new ref]         0c4cc968bc1265cae5d6fa8be3a869cffd5d3593 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c4cc96 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild