[Wikidata-bugs] [Maniphest] [Created] T226603: Blazegraph federation call does not properly work with URLs containing parameters

[Smalyshev]

Smalyshev created this task.
Smalyshev added projects: Wikidata-Query-Service, 
Discovery-Wikidata-Query-Service-Sprint.
Restricted Application added a subscriber: Aklapper.
Restricted Application added a project: Wikidata.

TASK DESCRIPTION
  Query like:
  
    SELECT * WHERE {
      SERVICE 
<http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org> {
        SELECT * WHERE {
        ?x ?y ?z
      } LIMIT 10
    }
      }
  
  does not work because ConnectOptions.addQueryParams() tries to add second `?` 
to the URL string which is certainly wrong.

TASK DETAIL
  https://phabricator.wikimedia.org/T226603

EMAIL PREFERENCES
  https://phabricator.wikimedia.org/settings/panel/emailpreferences/

To: Smalyshev
Cc: Aklapper, Smalyshev, darthmon_wmde, Nandana, Lahi, Gq86, 
Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst, 
LawExplorer, _jensen, rosalieper, Cirdan, Jonas, Xmlizer, jkroll, 
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331

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