$ git clone -n https://gitee.com/wanghuan158/qemu.git /var/lib/mock/dist-an23-build-483978-74333/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-483978-74333/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin 140fa302f57bde951ffe7c0bbd9782dcab5e26db:KOJI_FETCH_HEAD
From https://gitee.com/wanghuan158/qemu
 * [new ref]         140fa302f57bde951ffe7c0bbd9782dcab5e26db -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 140fa30 Sync upstream changes