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SPARQL: bad "instance of" statements pointing to EntityData
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Description

I was trying to find all classes, and hit strange things like this:

ask {
  wd:Q84462620 wdt:P31 <https://www.wikidata.org/wiki/Special:EntityData/Q84462620.ttl?flavor=dump&revision=1205513294>
}

How can an entity be an instance of its own dump?
According to SPARQL, that query is not instance of anything else. According to the UI https://www.wikidata.org/wiki/Q84462620, it's a "quasar" and "star" which makes sense