$ git clone -n https://src.fedoraproject.org/rpms/octave-io.git /var/lib/mock/f42-build-3285019-41411/root/chroot_tmpdir/scmroot/octave-io
Cloning into '/var/lib/mock/f42-build-3285019-41411/root/chroot_tmpdir/scmroot/octave-io'...
$ git fetch origin d6e5d3b8556b6763fa689e7229bf941fdb09cf0d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-io
 * [new ref]         d6e5d3b8556b6763fa689e7229bf941fdb09cf0d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6e5d3b Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild