$ git clone -n https://gitee.com/wency_cn/dwarves_1770918760.git /var/lib/mock/dist-an23-build-514253-75110/root/chroot_tmpdir/scmroot/dwarves_1770918760
Cloning into '/var/lib/mock/dist-an23-build-514253-75110/root/chroot_tmpdir/scmroot/dwarves_1770918760'...
$ git fetch origin f23bba092afc9ddac34da128738b2e0de7af75b7:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/dwarves_1770918760
 * [new ref]         f23bba092afc9ddac34da128738b2e0de7af75b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f23bba0 Update code from upstream