$ git clone -n https://gitee.com/src-opencloudos-rpms/unbound.git /var/lib/mock/dist-oc8-build-247534-83586/root/chroot_tmpdir/scmroot/unbound
Cloning into '/var/lib/mock/dist-oc8-build-247534-83586/root/chroot_tmpdir/scmroot/unbound'...
$ git fetch origin b61b62e31f3969bd005088fc5dad4053fc70d9fc:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/unbound
 * [new ref]         b61b62e31f3969bd005088fc5dad4053fc70d9fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b61b62e import unbound-1.16.2-5.14.tl3