Integer in elsticsearch returns string type when using "RAW DOCUMENT"

I found that the integer type is not effective when I set the Column Styles.
This field is integer in ElasticSearch. But it is a String in the return json data, when the metric is RAW DOCUMENT.

My grafana is 4.4.3

Hi,

Please have a look at this issue, it feels like the exact same problem.

Marcus