$ git clone -n https://gitee.com/wency_cn/dwarves.git /var/lib/mock/dist-an23-build-491984-74553/root/chroot_tmpdir/scmroot/dwarves
Cloning into '/var/lib/mock/dist-an23-build-491984-74553/root/chroot_tmpdir/scmroot/dwarves'...
$ git fetch origin 31c43c1f8d076b57c343c5a8198904a16b0e0ce6:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/dwarves
 * [new ref]         31c43c1f8d076b57c343c5a8198904a16b0e0ce6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31c43c1 Update code from upstream