$ git clone -n https://gitee.com/opencloudos-stream/snappy.git /var/lib/mock/dist-ocs23-build-30900-1203/root/chroot_tmpdir/scmroot/snappy
Cloning into '/var/lib/mock/dist-ocs23-build-30900-1203/root/chroot_tmpdir/scmroot/snappy'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/snappy
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 373b180 !1 close SNAPPY_BUILD_TESTS due to requires to c++14 Merge pull request !1 from abushwang/master