$ git clone -n https://gitee.com/src-opencloudos-rpms/libxml2.git /var/lib/mock/dist-oc9-build-67916-46655/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/dist-oc9-build-67916-46655/root/chroot_tmpdir/scmroot/libxml2'...
$ git fetch origin 003096d716fa939ba8a5016bf3404d730b34b61e:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libxml2
 * [new ref]         003096d716fa939ba8a5016bf3404d730b34b61e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 003096d import libxml2-2.11.5-2.tl4