| Nikki created this task. Nikki added a project: Wikidata-Query-Service. Herald added a subscriber: Aklapper. Herald added projects: Wikidata, Discovery. |
For labels, the codes crh-latn and nds-nl are lowercase (see this query). For sitelinks, they are written crh-Latn and nds-NL (see this query).
Since language codes are case insensitive, they are both valid and equivalent, but I think we should be consistent, because that's what most users will expect (e.g. not one of the example queries use lcase() or ucase() when using lang() or schema:inLanguage - people just assume that a language code will always be capitalised the same way) and being inconsistent leads to unexpected behaviour (unexpected results when comparing labels with sitelinks is how I discovered that the capitalisation differs). I think only crh-latn and nds-nl are affected for sitelinks, so far less data would be affected by lowercasing those compared to changing the case used for labels/descriptions/aliases.
Cc: Nikki, Aklapper, GoranSMilovanovic, QZanden, EBjune, merbst, Avner, debt, Gehel, Jonas, FloNight, Xmlizer, Izno, jkroll, Smalyshev, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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