$ git clone -n https://gitee.com/wency_cn/at_1770961981.git /var/lib/mock/dist-an23-build-514443-75110/root/chroot_tmpdir/scmroot/at_1770961981
Cloning into '/var/lib/mock/dist-an23-build-514443-75110/root/chroot_tmpdir/scmroot/at_1770961981'...
$ git fetch origin 77213d7bf71f51b7a549dd84d6712dd16e3f0947:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/at_1770961981
 * [new ref]         77213d7bf71f51b7a549dd84d6712dd16e3f0947 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77213d7 Update code from upstream