title: mongoosastic findOneAndUpdate not indexing in elasticsearch
body: <blockquote>
    <p><strong>Problem :</strong> In my example if i user <strong>schema.save</strong> then it will indexed in elastic search</p>
    
    <p>but <strong>problem starts</strong> when i use <strong>findOneAndUpdate</strong> so it will not index in elastic even
    if i insert (i.e save)</p>
  </blockquote>
  
  <p><i></p>
  
  <pre><code>MovieSchema.findOneAndUpdate(query, reqObject, {
          upsert: true
      }, function(err, results) {
          if (err) {
              if (!update) {
                   var filePath = path.join(__dirname, "../../movie/images/uploads/") + reqObject.imageUrl;
                   fs.unlinkSync(filePath);
               }
              console.log(err)
              callback({
                  RESULT_CODE: '-1',
                  MESSAGE: 'System error. Please try again'
              });
          } else {
  
              callback({
                  RESULT_CODE: '1',
                  MESSAGE: 'Movie inserted'
              });
  
          }
      });
  </code></pre>
  
  <p></i></p>