$ git clone -n https://gitee.com/wency_cn/unbound_1770719663.git /var/lib/mock/dist-an23-build-513032-75099/root/chroot_tmpdir/scmroot/unbound_1770719663
Cloning into '/var/lib/mock/dist-an23-build-513032-75099/root/chroot_tmpdir/scmroot/unbound_1770719663'...
$ git fetch origin 3937c2fc61cd08b2f6dc240b4f939aed7bf479eb:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/unbound_1770719663
 * [new ref]         3937c2fc61cd08b2f6dc240b4f939aed7bf479eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3937c2f Update code from upstream