$ git clone -n https://gitee.com/src-opencloudos-rpms/unbound.git /var/lib/mock/dist-oc9-build-241580-82856/root/chroot_tmpdir/scmroot/unbound
Cloning into '/var/lib/mock/dist-oc9-build-241580-82856/root/chroot_tmpdir/scmroot/unbound'...
$ git fetch origin 64ca97734aac73d45f7c0e7db3abdc4f4ed7b4c2:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/unbound
 * [new ref]         64ca97734aac73d45f7c0e7db3abdc4f4ed7b4c2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64ca977 import unbound-1.17.1-13.tl4