title: Fetch more function is undefined for useLazyQuery react-apollo hook
body: <p>I use react-apollo useLazyQuery hook. My goal to use it in fetch more button click. However, when I try to use it the fetchMore function is undefined.</p>
  <p>Here the call to it:</p>
  <pre><code>const [getMyData,{ loading, data, fetchMore }] = useLazyQuery(
      myQuery,
      {
        notifyOnNetworkStatusChange: true,
        fetchPolicy: 'network-only',
        variables: {}
  })
  </code></pre>
  <p>Even if I run lazy on component ready, fetchMoreStill undefined.</p>
  <pre><code>  useEffect(()=&gt;{
      getMyData()
    },[])
  </code></pre>
  <p>The question is why it is undefined?</p>
  <blockquote>
  <p>&quot;apollo-client&quot;: &quot;^2.6.4&quot;, &quot;react-apollo&quot;: &quot;^3.1.3&quot;,</p>
  </blockquote>