indirect variable breaks working static SPARQL query (Edit: templated query doesn't work when multiple replacements of variable are needed)

SolidLabResearch / generic-data-viewer-react-admin

MIT License

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Following query, using source https://work.de-meester.org/oslo.ttl, works:

SELECT ?sfrom ?pfrom ?pto ?oto ?class ?pclass ?pclassprop ?oclassprop
WHERE {
  {
  ?sfrom ?pfrom <https://data.vlaanderen.be/ns/persoon#GeregistreerdPersoon> .
  } UNION {
  <https://data.vlaanderen.be/ns/persoon#GeregistreerdPersoon> ?pto ?oto .
  } UNION {
  <https://data.vlaanderen.be/ns/persoon#GeregistreerdPersoon> <http://www.w3.org/2000/01/rdf-schema#subClassOf> ?class .
  ?pclass <http://www.w3.org/2000/01/rdf-schema#domain> ?class .
  ?pclass ?pclassprop ?oclassprop .
  }
}

However, it doesn't when using an indirect var using following query (to replace https://data.vlaanderen.be/ns/persoon#GeregistreerdPersoon):

SELECT DISTINCT ?class
WHERE {
  ?class <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#Class> .
}

But it does work when using following static variable:

{
     "class": [
          "<https://data.vlaanderen.be/ns/persoon#GeregistreerdPersoon>"
     ]
}

SolidLabResearch / generic-data-viewer-react-admin

indirect variable breaks working static SPARQL query (Edit: templated query doesn't work when multiple replacements of variable are needed) #164