Query params that are not required included in every request like 'optional_fields: 'DATA GOES HERE''

[olenakulik]

I have a configuration for test_gen with different combinations for query params for endpoint:

            get: {
                '200': [{
                    ordering: ['id'],
                    businessUnits: [businessUnits.businessUnit.id],
                    description: 'ordering and filter by business unit'
                }, {
                    limit: 1,
                    offset: 1,
                    description: 'limit and offset'
                }, {
                    businessUnitNames: [businessUnits.businessUnit.name],
                    description: 'filter by business unit names'
                }, {
                    inet: ipRanges.results[1].startAddress,
                    description: 'filter by IPs or CIDRs'
                }, {
                    tags: [annotationTags.results[0].id, annotationTags.results[1].id],
                    description: 'filter by annotation tags id'
                }, {
                    tagNames: [annotationTags.results[0].name],
                    description: 'filter by annotation tags name'
                }, {
                    optional_fields: ['annotation', 'attributionReasons', 'enclosingIpNetwork', 'latestObservationSnapshot', 'latestMapSnapshot'],
                    description: 'include optional fields'
                }, {
                    limit: 10,
                    offset: 0,
                    businessUnitNames: [businessUnits.businessUnit.name],
                    tags: [annotationTags.results[0].id],
                    optional_fields: ['annotation', 'attributionReasons', 'enclosingIpNetwork', 'latestObservationSnapshot', 'latestMapSnapshot'],
                    description: 'limit, offset, filter by BU name and tags with included optional fields'
                }]
            }
        }

All these params are not required, an example from spec:

    description: >
      Comma-separated string; Include the provided fields as part of the
      serialized result.
    in: query
    name: optional_fields
    required: false
    type: array
    collectionFormat: csv
    items:
      enum:
        - enclosingIpNetwork
        - latestObservationSnapshot
        - latestMapSnapshot
        - attributionReasons
        - annotation
      type: string

Why codegen includes all of them into request?
Am I missing something?

        qs: {
          limit: 'DATA GOES HERE',offset: 'DATA GOES HERE',ordering: 'id',businessUnits: '95cac2f2-cf70-4bb1-af1d-14f143fbfb3a',businessUnitNames: 'DATA GOES HERE',inet: 'DATA GOES HERE',tags: 'DATA GOES HERE',tagNames: 'DATA GOES HERE',optional_fields: 'DATA GOES HERE'
        },
        method: 'GET',
        headers: {
          'Content-Type': 'application/json',
          Authorization: process.env.JWT
        }
      },
      function(error, res, body) {
        if (error) return done(error);

        res.statusCode.should.equal(200);

        validator.validate(body, schema).should.be.true;
        done();
      });

Thanks in advance! :)