Bounding box query not working

gistfile1.txt

echo 'Loading test_index mapping'
curl -XPUT localhost:9200/test_index -d '{  
      "mappings":{  
         "user":{  
            "_id":{  
               "path":"userID"
            },
            "_routing":{  
               "path":"userID"
            },
            "properties":{  
               "aboutContact":{  
                  "type":"string"
               },
               "acceptMessage":{  
                  "type":"boolean"
               },
               "acceptTandem":{  
                  "type":"boolean"
               },
               "address":{  
                  "type":"string",
                  "index":"no"
               },
               "attending":{  
                  "type":"nested",
                  "properties":{  
                     "events":{  
                        "type":"integer"
                     },
                     "eventsWaitList":{  
                        "type":"integer"
                     }
                  }
               },
               "availabilityText":{  
                  "type":"string",
                  "index":"no"
               },
               "birthday":{  
                  "type":"date",
                  "format":"date"
               },
               "city":{  
                  "type":"string"
               },
               "coords":{  
                  "type":"geo_point"
               },
               "country":{  
                  "type":"string"
               },
               "email":{  
                  "type":"string",
                  "index":"not_analyzed"
               },
               "firstName":{  
                  "type":"string",
                  "index":"not_analyzed"
               },
               "following":{  
                  "type":"integer",
                  "index":"no"
               },
               "follows":{  
                  "type":"integer",
                  "index":"no"
               },
               "id":{  
                  "type":"string"
               },
               "joinDate":{  
                  "type":"date",
                  "format":"basic_date_time"
               },
               "lastName":{  
                  "type":"string",
                  "index":"not_analyzed"
               },
               "locale":{  
                  "type":"string"
               },
               "locations":{  
                  "type":"integer",
                  "index":"no"
               },
               "personal":{  
                  "type":"string",
                  "index":"no"
               },
               "postal":{  
                  "type":"string"
               },
               "postalCode":{  
                  "type":"string",
                  "index":"no"
               },
               "state":{  
                  "type":"string"
               },
               "userGroup":{  
                  "type":"string"
               },
               "userID":{  
                  "type":"integer"
               }
            }
         }
      }
}'

echo 'Indexing user'
curl -XPUT localhost:9200/test_index/user/149 -d '{
  "firstName":"bob",
  "lastName":"Jones",
  "locale":"en_US",
  "email":"bob@cherrypicking.com",
  "details":{  
     "birthday":"1989-02-20",
     "gender":"MALE"
  },
  "joinDate":"20150308T082423.559+02:00",
  "userGroup":"2",
  "userID":149,
  "country":"DE",
  "address":null,
  "city":"Berlin",
  "name":null,
  "state":"Berlin",
  "postal":null,
  "coords":{
     "lat":52.52000659999999,
     "lon":13.404953999999975
  }
}'

echo 'The bounding box query that returns no results'
curl -XGET http://localhost:9200/test_index/user/_search -d '{  
   "query":{  
      "filtered":{  
         "query":{  
            "match_all":{}
         },
         "filter":{
            "geo_bounding_box":{  
               "coords":{  
                  "top_left":{  
                     "lat":50,
                     "lon":10
                  },
                  "bottom_right":{  
                     "lat":55,
                     "lon":15
                  }
               }
            }
         }
      }
   }
}'

echo 'Similar geo distance query that does work'
curl -XGET http://localhost:9200/test_index/user/_search -d '{  
   "query":{  
      "filtered":{  
         "query":{  
            "match_all":{}
         },
         "filter":{
            "geo_distance":{  
               "distance": "1km",
               "coords":{   
                  "lat":52.52000659999999,
                  "lon":13.404953999999975
               }
            }
         }
      }
   },
   "fields": ["userID"]
}'