Elasticsearch Index Template - Improper Typing (Pre)

{
  "test-template": {
    "order": 1,
    "template": "logstash-*",
    "mappings": {
      "_default_": {
        "dynamic_templates": [
          {
            "boolean_fields": {
              "mapping": {
                "index": "not_analyzed",
                "omit_norms": true,
                "doc_values": true,
                "type": "boolean"
              },
              "match": "*_boolean"
            }
          },
          {
            "integer_fields": {
              "mapping": {
                "index": "not_analyzed",
                "omit_norms": true,
                "doc_values": true,
                "type": "integer"
              },
              "match": "*_integer"
            }
          },
          {
            "long_fields": {
              "mapping": {
                "index": "not_analyzed",
                "omit_norms": true,
                "doc_values": true,
                "type": "long"
              },
              "match": "*_long"
            }
          },
          {
            "float_fields": {
              "mapping": {
                "index": "not_analyzed",
                "omit_norms": true,
                "doc_values": true,
                "type": "float"
              },
              "match": "*_float"
            }
          },
          {
            "double_fields": {
              "mapping": {
                "index": "not_analyzed",
                "omit_norms": true,
                "doc_values": true,
                "type": "double"
              },
              "match": "*_double"
            }
          },
          {
            "ip_fields": {
              "mapping": {
                "index": "not_analyzed",
                "omit_norms": true,
                "doc_values": true,
                "type": "ip"
              },
              "match": "*_ip"
            }
          },
          {
            "geo_point_fields": {
              "mapping": {
                "index": "not_analyzed",
                "omit_norms": true,
                "doc_values": true,
                "type": "geo_point"
              },
              "match": "*_geo_point"
            }
          },
          {
            "date_fields": {
              "mapping": {
                "index": "not_analyzed",
                "omit_norms": true,
                "doc_values": true,
                "type": "date"
              },
              "match": "*__date"
            }
          },
          {
            "string_fields": {
              "mapping": {
                "index": "not_analyzed",
                "omit_norms": true,
                "doc_values": true,
                "type": "string"
              },
              "match": "*_string"
            }
          },
          {
            "nested_items_template": {
              "mapping": {
                "numeric_detection": false,
                "date_detection": false,
                "doc_values": true,
                "type": "multi_field",
                "fields": {
                  "raw": {
                    "index": "not_analyzed",
                    "ignore_above": 256,
                    "type": "string"
                  },
                  "{name}": {
                    "index": "analyzed",
                    "type": "{dynamic_type}"
                  }
                }
              },
              "match": "*",
              "match_mapping_type": "string"
            }
          },
          {
            "string_fields": {
              "mapping": {
                "index": "analyzed",
                "omit_norms": true,
                "date_detection": false,
                "doc_values": true,
                "type": "string",
                "fields": {
                  "raw": {
                    "index": "not_analyzed",
                    "ignore_above": 256,
                    "type": "string"
                  }
                }
              },
              "match": "*",
              "match_mapping_type": "string"
            }
          }
        ],
        "numeric_detection": false,
        "date_detection": false,
        "properties": {
          "@timestamp": {
            "type": "date"
          },
          "geoip": {
            "properties": {
              "coordinates": {
                "type": "geo_point"
              },
              "ip": {
                "type": "ip"
              }
            }
          }
        }
      }
    },
    "aliases": {}
  }
}