$ git clone -n https://src.fedoraproject.org/rpms/octave-io.git /var/lib/mock/f42-build-865377-173043/root/chroot_tmpdir/scmroot/octave-io
Cloning into '/var/lib/mock/f42-build-865377-173043/root/chroot_tmpdir/scmroot/octave-io'...
$ git fetch origin 417afa859721798c4e88673c96fe64c0df077754:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-io
 * [new ref]         417afa859721798c4e88673c96fe64c0df077754 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 417afa8 Rebuild for octave 9.2