$ git clone -n https://gitee.com/wanghuan158/qemu.git /var/lib/mock/dist-an23-build-462717-73799/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-462717-73799/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin 059f6e6b6f729346a3c6794e3d1e574afc9e82c1:KOJI_FETCH_HEAD
From https://gitee.com/wanghuan158/qemu
 * [new ref]         059f6e6b6f729346a3c6794e3d1e574afc9e82c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 059f6e6 Sync upstream changes