anchor.diff:                    },
                     "_score": 1.0444683,
                     "fields": {
  -                    "comments.text": [
  +                    "comments.text.keyword": [
                         "words words words"
                       ]
                     }
  
positive.code:     "doc": {
        "properties": {
          "comments": {
            "type": "nested",
            "properties": {
              "text": {
                "type": "text",
                "store": true
              }
            }
          }
        }
      }
  
negative.code:       },
        "inner_hits": {
          "_source" : false,
          "docvalue_fields" : ["comments.text.keyword"]
        }
      }
    }
  