$ git clone -n https://gitee.com/wanghuan158/qemu.git /var/lib/mock/dist-an23-build-467760-74027/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-467760-74027/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin 7b77cf543bfdbfedd726042591efddc987bdc519:KOJI_FETCH_HEAD
From https://gitee.com/wanghuan158/qemu
 * [new ref]         7b77cf543bfdbfedd726042591efddc987bdc519 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b77cf5 Sync upstream changes