$ git clone -n https://gitee.com/wenyuzifang/unbound_1770282106.git /var/lib/mock/dist-an23-build-511819-75080/root/chroot_tmpdir/scmroot/unbound_1770282106
Cloning into '/var/lib/mock/dist-an23-build-511819-75080/root/chroot_tmpdir/scmroot/unbound_1770282106'...
$ git fetch origin 906c447ea0d6b1fa6feb04f00e5f3f558e81d8b3:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/unbound_1770282106
 * [new ref]         906c447ea0d6b1fa6feb04f00e5f3f558e81d8b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 906c447 Update code from upstream