$ git clone -n https://gitee.com/opencloudos-stream/qemu.git /var/lib/mock/dist-ocs23-base-build-300017-29536/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-ocs23-base-build-300017-29536/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 b721ff3 !37 enable loongarch testcase Merge pull request !37 from luochenglcs/master