$ git clone -n https://gitee.com/src-opencloudos-rpms/libxmlb.git /var/lib/mock/dist-oc8-build-247610-83605/root/chroot_tmpdir/scmroot/libxmlb
Cloning into '/var/lib/mock/dist-oc8-build-247610-83605/root/chroot_tmpdir/scmroot/libxmlb'...
$ git fetch origin d81fb4c8ed208a9c15b6f9daa73c6f4772e5a91e:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libxmlb
 * [new ref]         d81fb4c8ed208a9c15b6f9daa73c6f4772e5a91e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d81fb4c import libxmlb-0.3.28-2.tl3