title: Spring Data Redis: Redis Pipeline hget returning always null
body: <pre><code>getRedisTemplate().executePipelined(
      new RedisCallback&lt;Object&gt;() { 
          @Override
          public Object doInRedis(RedisConnection connection) throws DataAccessException {
              connection.hGet(key);
  
              return null;
          }
      }
  );
  </code></pre>
  
  <p>The result is <code>null</code>, and I can not fix it.</p>