Is filtering elastichsearch result item nested fields (by e.g. geolocation) possible?

config.yml

### MAPPING ###

  elastic_company_document_mapping:
    testing:
      type: 'boolean'
    type:
      type: 'string'
      analyzer: 'standard'
      fields:
        folded:
          type: 'string'
          analyzer: 'sa_folding'
    name:
      type: 'string'
      analyzer: 'standard'
      fields:
        orig:
          type: 'string'
          index: 'not_analyzed'
        folded:
          type: 'string'
          analyzer: 'sa_folding'
    short_description:
      type: 'string'
      analyzer: 'standard'
      fields:
        folded:
          type: 'string'
          analyzer: 'german'
    description:
      type: 'string'
      analyzer: 'standard'
      fields:
        folded:
          type: 'string'
          analyzer: 'german'
    locations:
      type: 'nested'
      properties: 
        city:
          type: 'string'
          analyzer: 'standard'
          fields:
            folded:
              type: 'string'
              analyzer: 'sa_folding'
        street:
          type: 'string'
          analyzer: 'standard'
          fields:
            folded:
              type: 'string'
              analyzer: 'sa_folding'
        pin:
          lat_lon: true
          type: geo_point
    projects:
      type: 'object'
      properties:
        project_name:
          type: 'string'
          analyzer: 'standard'
          fields:
            folded:
              type: 'string'
              analyzer: 'sa_folding'
        project_description:
          type: 'string'
          analyzer: 'standard'
          fields:
            folded:
              type: 'string'
              analyzer: 'german'
        project_segment:
          type: 'string'
          analyzer: 'standard'
          fields:
            folded:
              type: 'string'
              analyzer: 'sa_folding'
        executed_activities_text:
          type: 'string'
          analyzer: 'standard'
          fields:
            folded:
              type: 'string'
              analyzer: 'german'
        location:
          properties:
            city:
              type: 'string'
              analyzer: 'standard'
              fields:
                folded:
                  type: 'string'
                  analyzer: 'sa_folding'
            street:
              type: 'string'
              analyzer: 'standard'
              fields:
                folded:
                  type: 'string'
                  analyzer: 'sa_folding'
            pin:
              lat_lon: true
              type: geo_point
    trades:
      type: 'object'
      properties:
        package:
          type: 'string'
          analyzer: 'standard'
          fields:
            folded:
              type: 'string'
              analyzer: 'sa_folding'
        trades:
          type: 'string'
          index_name: 'trade'
          analyzer: 'standard'
          fields:
            folded:
              type: 'string'
              analyzer: 'sa_folding'


#### ....

one_hit.json

{
    "_index": "prod",
    "_type": "company",
    "_id": "194228",
    "_score": 1,
    "_source": {
        "id": "194228",
        "name": "pbr Planungsbüro Rohling AG Architekten und Ingenieure",
        "slug": "pbr-planungsburo-rohling-ag-architekten-und-ingenieure",
        "testing": "0",
        "employees_craft_total": null,
        "employees_tech_total": null,
        "short_description": "Gesamtplanung von Gebäuden mit hohem gestalterischen und technischen Anspruch für öffentliche Hand und Privatwirtschaft",
        "description": "Planung von Laborgebäuden, Schwimmbädern, Rechenzentren, Krankenhäusern, Logistikimmobilien, Produktionsstätten für Automobil-, chemische, pharmazeutische und Lebensmittelindustrie, Bildungseinrichtungen, Hotels und Wohnanlagen, Großküchen und Mensen / Betriebsrestaurants",
        "funding_year": "1960",
        "action_radius": "eu_wide",
        "action_radius_distance": null,
        "completeness": "100",
        "type": "Gesamtplaner",
        "projects": [ // ....
        ],
        "locations": [
            {
                "street": "Albert-Einstein-Straße 2",
                "zip_code": "49076",
                "city": "Osnabrück",
                "pin": {
                    "lat": 52.335129,
                    "lon": 8.070955
                }
            }
            ,
            {
                "street": "Stralauer Platz 34",
                "zip_code": "10243",
                "city": "Berlin",
                "pin": {
                    "lat": 52.50926,
                    "lon": 13.43212
                }
            }
            ,
            {
                "street": "Campestraße 7",
                "zip_code": "38102",
                "city": "Braunschweig",
                "pin": {
                    "lat": 52.255762,
                    "lon": 10.53015
                }
            }
            ,
            {
                "street": "Zimmerstraße 15a",
                "zip_code": "40215",
                "city": "Düsseldorf",
                "pin": {
                    "lat": 51.20981,
                    "lon": 6.78105
                }
            }
            ,
            {
                "street": "Fürstenbergerstraße 3-9",
                "zip_code": "60322",
                "city": "Frankfurt am Main",
                "pin": {
                    "lat": 50.125843,
                    "lon": 8.681219
                }
            }
            ,
            {
                "street": "Dornbusch 2",
                "zip_code": "20095",
                "city": "Hamburg",
                "pin": {
                    "lat": 53.5492,
                    "lon": 9.99398
                }
            }
            ,
            {
                "street": "Rathenaustraße 11",
                "zip_code": "07745",
                "city": "Jena",
                "pin": {
                    "lat": 50.92307,
                    "lon": 11.58018
                }
            }
            ,
            {
                "street": "Friedrich-Ebert-Straße 62",
                "zip_code": "39114",
                "city": "Magdeburg",
                "pin": {
                    "lat": 52.12445,
                    "lon": 11.66626
                }
            }
            ,
            {
                "street": "Kirchheimer Straße 64a",
                "zip_code": "70619",
                "city": "Stuttgart",
                "pin": {
                    "lat": 48.74426,
                    "lon": 9.21277
                }
            }
            ,
            {
                "street": "Office 302; 22nd Line of Wassiljewskij Ostrov, 3; 199106 St. Petersburg, Russische Föderation",
                "zip_code": null,
                "city": "St. Petersburg, Russische Föderation",
                "longitude": null,
                "latitude": null
            }
        ],
        "certificates": [
            "iso9001"
        ],
    },
    "sort": [
        100
        ,
        1
    ]

}

search_request.json

{
  "query": {
    "bool": {
      "must": [
        {
          "bool": {
            "must": [
              {
                "filtered": {
                  "query": {
                    "match_all": {}
                  },
                  "filter": {
                    "nested": {
                      "path": "locations",
                      "filter": {
                        "geo_distance": {
                          "distance": "5km",
                          "locations.pin": {
                            "lat": 52.129005,
                            "lon": 11.620906
                          }
                        }
                      }
                    }
                  }
                }
              }
            ]
          }
        }
      ]
    }
  },
  "from": 0,
  "size": 50,
  "sort": [
    {
      "completeness": "desc"
    },
    {
      "_score": "desc"
    }
  ]
}