https://bugzilla.wikimedia.org/show_bug.cgi?id=53520
Web browser: ---
Bug ID: 53520
Summary: bad globecoordinate data values in wikidata
Product: MediaWiki extensions
Version: master
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: WikidataRepo
Assignee: wikidata-b...@lists.wikimedia.org
Reporter: aude.w...@gmail.com
CC: wikidata-b...@lists.wikimedia.org
Classification: Unclassified
Mobile Platform: ---
On Monday when new code was deployed to Wikidata, the DataValue (and api) was
changed to disallow null data in the globecoordinate value's precision field.
This caused a problem when editing an item, and claims (including unrelated
claims) on the item got resaved. Many globecoordinate claims in the database
have null precision. Then the system regarded these globecoordinate values as
"bad", invalid, undeserializable.
To further complicate the problem, these "bad" values were actually being
stored in the database with datavalue type = "bad", losing knowledge that these
had been "globecoordinate".
We updated the software to allow null precision again, for now. Saving
globecoordinate with null is okay now, although deprecated and discouraged.
It was possible for my bot to go through affected items and set the datavalue
type back to "globecoordinate" to allow them to be valid again. This fixed any
"broken" items.
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