$ git clone -n https://gitee.com/wanghuan158/qemu.git /var/lib/mock/dist-an23-build-508734-75015/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-508734-75015/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin 76503392b2094143d3f30abf03e62b3bb0b21890:KOJI_FETCH_HEAD
From https://gitee.com/wanghuan158/qemu
 * [new ref]         76503392b2094143d3f30abf03e62b3bb0b21890 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7650339 Sync upstream changes