$ git clone -n https://src.fedoraproject.org/rpms/xfmpc.git /var/lib/mock/f40-build-751809-116372/root/chroot_tmpdir/scmroot/xfmpc
Cloning into '/var/lib/mock/f40-build-751809-116372/root/chroot_tmpdir/scmroot/xfmpc'...
$ git fetch origin 17e98dbcda11098349fb11d4e140f0f5e6b05b04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfmpc
 * [new ref]         17e98dbcda11098349fb11d4e140f0f5e6b05b04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17e98db Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild