[Wikidata-bugs] [Maniphest] [Created] T145868: "Headless value factory should not be asked for its namespace" error ( Wikidata Query Service)

[Esc3300]

Esc3300 created this task. Esc3300 added a project: Wikidata-Query-Service. Herald added a subscriber: Aklapper. Herald added projects: Wikidata, Discovery.

TASK DESCRIPTION

Since yesterday, I keep getting this error in various queries.

Sample query:

SELECT ?item 
{
	?item wdt:P31 wd:Q3917681
    OPTIONAL {?item wdt:P17 ?host }  BIND(IF(!BOUND(?host), 0, 1) as ?p1)
  	SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}

The query for the riders and their horse list last updated on Sept 11 and fails now for the same reason.

TASK DETAIL

https://phabricator.wikimedia.org/T145868

EMAIL PREFERENCES

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To: Esc3300
Cc: Aklapper, Esc3300, mschwarzer, Avner, debt, Gehel, D3r1ck01, Jonas, FloNight, Xmlizer, Izno, jkroll, Smalyshev, Wikidata-bugs, Jdouglas, aude, Deskana, Manybubbles, Mbch331

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