$ git clone -n https://gitee.com/src-opencloudos-rpms/unbound.git /var/lib/mock/dist-oc8-build-72787-48237/root/chroot_tmpdir/scmroot/unbound
Cloning into '/var/lib/mock/dist-oc8-build-72787-48237/root/chroot_tmpdir/scmroot/unbound'...
$ git fetch origin 71ddc5402c3d82093291e724bbfab52705a2365f:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/unbound
 * [new ref]         71ddc5402c3d82093291e724bbfab52705a2365f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71ddc54 import unbound-1.16.2-5.tl3.6