Arrays of objects are not allowed in http url query parameters

[dergus]

For example an RPC like this

service MapService {
  rpc Search(SearchRequest) returns (SearchResponse) {
    option (google.api.http) = {
      get: "/v1/search"
    };
  }
}

message SearchRequest{
  repeated Coordinate polygon = 1;
}

message Coordinate {
  float lat = 1;
  float lon = 2;
}

is expected to be callable using http protocol in the following manner: https://example.com/v1/search?polygon[0][lat]=55.11&polygon[0][lon]=55.22 but at the moment fields with repeated custom messages are just ignored from generated http server and swagger spec.