$ git clone -n https://gitee.com/opencloudos-stream/memcached.git /var/lib/mock/dist-rebuild-after-rpm-check-build-170940-10514/root/chroot_tmpdir/scmroot/memcached
Cloning into '/var/lib/mock/dist-rebuild-after-rpm-check-build-170940-10514/root/chroot_tmpdir/scmroot/memcached'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/memcached
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd91f47 !2 Upgrade to upstream version 1.6.22 Merge pull request !2 from jackxjchen/master