We would need to take $wgDummyLanguageCodes into account in order to fix this. That should probably be implemented in WikibaseContentLanguages, in a method named getAlternateLanguageCodes (or so).

@hoo, any idea when this can be fixed/who I can bug to fix it? It's getting annoying having to change the language all the time...

This is a minor fix and should be done asap.

This is not a minor fix we can just apply, but I think we have to look at the bigger picture where we have nb and no (probably) mixed up. Just changing one for the other will probably cause more harm than good. This needs to be investigated.

It is now several months since this bug was first reported, is there any progress?

Can we get some attention to this bug. This is a very irritating behaviour and discourages any new additions from norwegian users. The language dropdown also seems to the naked eye to be sorted in some strange way. Typing in the language works, but shouldn't be necessary.

I'll look into this. There are various issues around terms languages :/

This also seems problematic for other tools, e.g. as I explained in https://www.wikidata.org/wiki/Topic:Szxlu94k4l8qx7zx, Duplicity doesn't work very well for zh_min_nanwiki right now. To fix it, it would currently need to use "nan" as the language code for the API and "zh-min-nan" for Special:NewItem. It would be better if the same code could be used in both places.

This bug is half a year old now... Any progress??

Any progress?

Any update?

Change 291878 had a related patch set uploaded (by Adrian Heine):
Allow all term languages in Special:New*, use combobox

https://gerrit.wikimedia.org/r/291878

Change 291878 merged by jenkins-bot:
Allow all term languages in Special:New*, use combobox

https://gerrit.wikimedia.org/r/291878

@adrianheine Thank you very much!! 😊😊😊

This seems to produce a new bug,
Internal error

[7ec35341] /wiki/index.php/Spezial:Neues_Datenelement_erstellen MWException from line 423 of /var/www/server/wiki/includes/htmlform/HTMLForm.php: Descriptor with no class for lang: Array
(
[name] => lang
[options] => Array
(
[Qafár af (aa)] => aa
[Аҧсшәа (ab)] => ab

[default] => en
[type] => combobox
[id] => wb-newentity-language
[label-message] => wikibase-newentity-language
[class] =>
)

Backtrace:

#0 /var/www/server/wiki/includes/htmlform/HTMLForm.php(443): HTMLForm::getClassFromDescriptor(string, array)
#1 /var/www/server/wiki/includes/htmlform/OOUIHTMLForm.php(43): HTMLForm::loadInputFromParameters(string, array, OOUIHTMLForm)
#2 /var/www/server/wiki/includes/htmlform/HTMLForm.php(318): OOUIHTMLForm::loadInputFromParameters(string, array, OOUIHTMLForm)
#3 /var/www/wiki/includes/htmlform/OOUIHTMLForm.php(31): HTMLForm->construct(array, RequestContext, string)
#4 [internal function]: OOUIHTMLForm->construct(array, RequestContext)
#5 /var/www/server/wiki/includes/htmlform/HTMLForm.php(265): ReflectionClass->newInstanceArgs(array)
#6 /var/www/server/wiki/extensions/Wikibase/repo/includes/Specials/SpecialNewEntity.php(327): HTMLForm::factory(string, array, RequestContext)
#7 /var/www/server/wiki/extensions/Wikibase/repo/includes/Specials/SpecialNewEntity.php(167): Wikibase\Repo\Specials\SpecialNewEntity->createForm(Message, array)