$ git clone -n https://gitee.com/src-opencloudos-rpms/expat.git /var/lib/mock/dist-oc9-build-137607-79573/root/chroot_tmpdir/scmroot/expat
Cloning into '/var/lib/mock/dist-oc9-build-137607-79573/root/chroot_tmpdir/scmroot/expat'...
$ git fetch origin 17da961d3c7060783c408156536bb9e60a84917f:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/expat
 * [new ref]         17da961d3c7060783c408156536bb9e60a84917f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17da961 import expat-2.6.4-2.tl4