$ git clone -n https://gitee.com/wency_cn/dwarves_1772043578.git /var/lib/mock/dist-an23-build-515004-75118/root/chroot_tmpdir/scmroot/dwarves_1772043578
Cloning into '/var/lib/mock/dist-an23-build-515004-75118/root/chroot_tmpdir/scmroot/dwarves_1772043578'...
$ git fetch origin f71dd5adec67f7f91f8da3f900f4af78ad700fc8:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/dwarves_1772043578
 * [new ref]         f71dd5adec67f7f91f8da3f900f4af78ad700fc8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f71dd5a Update code from upstream