$ git clone -n https://gitee.com/wanghuan158/qemu.git /var/lib/mock/dist-an23-build-444255-73188/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-444255-73188/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin 56aff4d012f4142db5012452ad1ed310479ec9dd:KOJI_FETCH_HEAD
From https://gitee.com/wanghuan158/qemu
 * [new ref]         56aff4d012f4142db5012452ad1ed310479ec9dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56aff4d Sync upstream changes