$ git clone -n https://gitee.com/opencloudos-stream/qemu.git /var/lib/mock/dist-ocs23-base-build-300891-29864/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-ocs23-base-build-300891-29864/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/qemu
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55c2433 !39 Intel-SIG-8.2-Backport: target/i386: Introduce new CPU model SierraForest and more Merge pull request !39 from quanxianwang/SRF-CPU-MODEL