$ git clone -n https://gitee.com/lxpzero/jbig2dec.git /var/lib/mock/dist-an23.3-build-415588-72844/root/chroot_tmpdir/scmroot/jbig2dec
Cloning into '/var/lib/mock/dist-an23.3-build-415588-72844/root/chroot_tmpdir/scmroot/jbig2dec'...
$ git fetch origin 99bcb87118dd94c10326a299969140e2cb9c0f77:KOJI_FETCH_HEAD
From https://gitee.com/lxpzero/jbig2dec
 * [new ref]         99bcb87118dd94c10326a299969140e2cb9c0f77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 99bcb87 update to 0.20-7