$ git clone -n https://gitee.com/wanghuan158/qemu.git /var/lib/mock/dist-an23-build-538604-83799/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-538604-83799/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin 284b7ef1f4c08c9d421cc7719be84b9cbc2ed88b:KOJI_FETCH_HEAD
From https://gitee.com/wanghuan158/qemu
 * [new ref]         284b7ef1f4c08c9d421cc7719be84b9cbc2ed88b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 284b7ef Sync upstream changes