$ git clone -n https://gitee.com/src-opencloudos-rpms/expat.git /var/lib/mock/dist-oc9-build-236754-82322/root/chroot_tmpdir/scmroot/expat
Cloning into '/var/lib/mock/dist-oc9-build-236754-82322/root/chroot_tmpdir/scmroot/expat'...
$ git fetch origin 78cba38c9db73c27e3355b393c8dbd78fa491400:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/expat
 * [new ref]         78cba38c9db73c27e3355b393c8dbd78fa491400 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78cba38 import expat-2.6.4-5.tl4