$ git clone -n https://src.fedoraproject.org/rpms/unoconv.git /var/lib/mock/f40-build-2719721-73015/root/chroot_tmpdir/scmroot/unoconv
Cloning into '/var/lib/mock/f40-build-2719721-73015/root/chroot_tmpdir/scmroot/unoconv'...
$ git fetch origin 21ce03b7403e343abf184475e6cbd54b01f4c5ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/unoconv
 * [new ref]         21ce03b7403e343abf184475e6cbd54b01f4c5ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21ce03b Fix flatpak build