[N1QL + FTS]: Geo polygon query errors when FTS index type mapping is not dynamic

{

  "type": "fulltext-index",

  "name": "geo-index",

  "uuid": "18018c274a71ce22",

  "sourceType": "couchbase",

  "sourceName": "default",

  "sourceUUID": "fe92886e164fb487bd0588e0cbee9307",

  "planParams": {

    "maxPartitionsPerPIndex": 171,

    "indexPartitions": 6

  },

  "params": {

    "doc_config": {

      "docid_prefix_delim": "",

      "docid_regexp": "",

      "mode": "type_field",

      "type_field": "type"

    },

    "mapping": {

      "analysis": {},

      "default_analyzer": "standard",

      "default_datetime_parser": "dateTimeOptional",

      "default_field": "_all",

      "default_mapping": {

        "dynamic": true,

        "enabled": false

      },

      "default_type": "_default",

      "docvalues_dynamic": true,

      "index_dynamic": true,

      "store_dynamic": false,

      "type_field": "_type",

      "types": {

        "earthquake": {

          "dynamic": false,

          "enabled": true,

          "properties": {

            "geo": {

              "dynamic": false,

              "enabled": true,

              "fields": [

                {

                  "docvalues": true,

                  "include_in_all": true,

                  "index": true,

                  "name": "geo",

                  "type": "geopoint"

                }

              ]

            }

          }

        }

      }

    },

    "store": {

      "indexType": "scorch"

    }

  },

  "sourceParams": {}

}

FTS query : curl -XPOST -H "Content-Type: application/json" -u Administrator:password http://172.23.121.67:8094/api/index/geo-index/query -d '{"indexName": "geo-index", "from": 0, "fields": [], "explain": false, "ctl": {"timeout": 60000, "consistency": {"vectors": {}, "level": ""}}, "query": {"field": "geo", "polygon_points": [[-114.3743815113394, -46.756982267321966], [-171.67868606878855, -34.891248202060254], [0.558522625476428, 5.685980523172349], [-172.20567966652095, 16.806670889816562], [-165.0713403863565, 21.90009335800352], [6.011138275654218, 34.87519871500005], [-158.36147054304362, 41.645180713848376], [-118.62199373073707, 60.752915311361996], [-111.24391216054889, 17.93949563772368]]}, "size": 10000000}' 

N1FTY: select meta().id from default where type='earthquake' and search(default, {"field": "geo", "polygon_points": [[-114.3743815113394, -46.756982267321966], [-171.67868606878855, -34.891248202060254], [0.558522625476428, 5.685980523172349], [-172.20567966652095, 16.806670889816562], [-165.0713403863565, 21.90009335800352], [6.011138275654218, 34.87519871500005], [-158.36147054304362, 41.645180713848376], [-118.62199373073707, 60.752915311361996], [-111.24391216054889, 17.93949563772368]]})