$ git clone -n https://src.fedoraproject.org/rpms/rst2txt.git /var/lib/mock/f39-build-1457786-33017/root/chroot_tmpdir/scmroot/rst2txt
Cloning into '/var/lib/mock/f39-build-1457786-33017/root/chroot_tmpdir/scmroot/rst2txt'...
$ git fetch origin 83f64af02470dfae77e4e57a7945cb250d332a73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rst2txt
 * [new ref]         83f64af02470dfae77e4e57a7945cb250d332a73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83f64af Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild