$ git clone -n https://gitee.com/lxpzero/jbig2dec.git /var/lib/mock/dist-an23.3-build-421600-72908/root/chroot_tmpdir/scmroot/jbig2dec
Cloning into '/var/lib/mock/dist-an23.3-build-421600-72908/root/chroot_tmpdir/scmroot/jbig2dec'...
$ git fetch origin 744d92dc61f62b4136d0674b4cfadb80d125a63f:KOJI_FETCH_HEAD
From https://gitee.com/lxpzero/jbig2dec
 * [new ref]         744d92dc61f62b4136d0674b4cfadb80d125a63f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 744d92d update to 0.20 from 0.19