$ git clone -n https://src.fedoraproject.org/rpms/python-flit.git /var/lib/mock/f45-build-30735-647/root/chroot_tmpdir/scmroot/python-flit
Cloning into '/var/lib/mock/f45-build-30735-647/root/chroot_tmpdir/scmroot/python-flit'...
$ git fetch origin da9a7d0a1ef469fb6d4e918b8d8637262ef24940:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flit
 * [new ref]         da9a7d0a1ef469fb6d4e918b8d8637262ef24940 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da9a7d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild