dcausse created this task.
dcausse added projects: WikibaseMediaInfo, Wikidata-Query-Service.
Restricted Application added a subscriber: Aklapper.
Restricted Application added a project: Structured-Data-Backlog.

TASK DESCRIPTION
  Seen on M130887689 
<https://commons.wikimedia.org/wiki/Special:EntityData/M130887689.ttl?flavor=dump>
 and  M115086921 
<https://commons.wikimedia.org/wiki/Special:EntityData/M115086921.json> the 
content of the wikibase entity is almost identical.
  The statement ids are the same which is highly problematic for the Wikibase 
RDF representation which assumes that a statement id is unique and belong to a 
single entity.
  E.g. `M130887689$83501cde-4a4b-a7d0-9832-5f1982be0c41` is referenced by both 
M130887689 & M115086921.
  
  I'm not sure what actions have led to this situation but this should 
definitely be fixed to make sure that the statement ids are not shared.
  
  AC:
  
  - identify what action caused an entity to re-use statement ids
  - determine if this problem affects Wikibase itself and wikidata
  - fix this behavior
  - cleanup existing entities that have non unique statement ids

TASK DETAIL
  https://phabricator.wikimedia.org/T356161

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

To: dcausse
Cc: dcausse, Aklapper, AWesterinen, toberto, CBogen, Namenlos314, Gq86, 
Lucas_Werkmeister_WMDE, EBjune, KimKelting, merbst, Jonas, Xmlizer, jkroll, 
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Ricordisamoa
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