$ git clone -n https://gitee.com/wanghuan158/qemu.git /var/lib/mock/dist-an23-build-465812-73955/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-465812-73955/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin da54086d98116b3181f84abb68e126b0b68cb67e:KOJI_FETCH_HEAD
From https://gitee.com/wanghuan158/qemu
 * [new ref]         da54086d98116b3181f84abb68e126b0b68cb67e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da54086 Sync upstream changes