id in GraphQl query bug for text/turtle request

[renevds]

When requesting text/turtle for a set of queries that has id, all queries must have id in their query.

Minimal failing config:

openapi: 3.0.2
info:
  title: Test site
  version: 0.1.0
paths:
  /example:
    get:
      summary: A simple path
      responses:
        '200':
          description: A simple response
          x-walder-input-text/html: template.pug
      x-walder-query:
        graphql-query:
          first: |
            {
              id @single
              comment @single @optional
            } 
#adding id @single to this query makes it work correctly
          second: |
            {
              comment @single @optional
            }
        json-ld-context: |
          {
            "rdfs": "http://www.w3.org/2000/01/rdf-schema#",
            "comment": "rdfs:comment"
          }
        datasources:
          sources:
            - http://localhost:8080/example.ttl

RDF source for reference:

```rdf @prefix rdfs: . @prefix rdf: . @prefix owl: . @prefix foaf: . @prefix odapps: . @prefix apps4X: . @prefix schema: . @prefix dct: . @prefix xsd: . @prefix time: . @prefix geo: . @prefix lode: . @prefix dul: . @prefix rev: . @prefix skos: . # ---------------------------------------- Metadata---------------------------------------------- a owl:Ontology; rdfs:comment "odapps is an RDF vocabulary defined to facilitate the description of Open-Data-based ideas and applications published on the Web."; dct:title "The vocabulary for (L)OD ideas and applications"@en; dct:issued "2013-05-10"^^xsd:date; dct:modified "2013-07-24"^^xsd:date; dct:creator [foaf:mbox "Anastasia.Dimou@UGent.be"; foaf:name "Anastasia Dimou"]; dct:creator [foaf:mbox "Pieter.Colpaert@UGent.be"; foaf:name "Pieter Colpaert"]. # ------------------------------------------ Classes -------------------------------------------- # Co-creation Event # need to decide on the proper word to call it, is co-creation event? is it co-creation competition? is it competition? is it contest? # or use alternative labels. # A cocreation event may be an event on its own or it could be a competition in the frame of a broader event apps4X:CocreationEvent a rdfs:Class ; rdfs:subClassOf lode:Event, schema:Event ; rdfs:label "Co-creation event" ; rdfs:comment "A co-creation event is a competition, a contest, a challenge etc. It's a subproperty as it is an event but with a certain scope" ; rdfs:isDefinedBy . # ---------------------------------------- Properties -------------------------------------------- #apps4X:award #it could be more than one awards offered apps4X:award a rdf:Property ; rdfs:label "award offered" ; rdfs:comment "one or more awards offered at this co-creation event" ; rdfs:isDefinedBy ; rdfs:domain apps4X:CocreationEvent , apps4X:Jury ; rdfs:range apps4X:Award . ```

[pheyvaer]

We will need the full config file. This is not a full minimal failing example.

[renevds]

We will need the full config file. This is not a full minimal failing example.

Is this ok?

[pheyvaer]

Yes, great!