Mormegil created this task.
Mormegil added projects: Wikidata, Wikimedia-Interwiki-links.
Restricted Application added a subscriber: Aklapper.

TASK DESCRIPTION
  TL;DR:
  
  1. See mk:Категорија:Леднички земјишни облици 
<https://mk.wikipedia.org/wiki/%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%98%D0%B0:%D0%9B%D0%B5%D0%B4%D0%BD%D0%B8%D1%87%D0%BA%D0%B8_%D0%B7%D0%B5%D0%BC%D1%98%D0%B8%D1%88%D0%BD%D0%B8_%D0%BE%D0%B1%D0%BB%D0%B8%D1%86%D0%B8>
 and the correctly displayed language links there (and the corresponding 
Wikidata item <https://www.wikidata.org/wiki/Q7037550>).
  2. Compare with an API example 
<https://mk.wikipedia.org/w/api.php?action=query&format=json&prop=langlinks&titles=Category%3AЛеднички
 земјишни облици> reporting the page has //no// language links. (And the same 
shows in the langlinks database replica on Toolforge.)
  
  ----
  
  I have received an error report 
<https://www.mediawiki.org/wiki/User_talk:Mormegil#Category_completer_not_functioning_for_new_categories>
 about my Toolforge tool not working 
<https://mormegil.toolforge.org/catcompleter/?project=mk&catname=Леднички 
земјишни облици> for some recently created categories on mkwiki.
  
  The problem seems to be that some pages on mkwiki are missing entries in the 
langlinks table, even though the page is linked with a Wikidata item with many 
sitelinks, and the Wikipedia category page even displays those links correctly 
<https://mk.wikipedia.org/wiki/%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%98%D0%B0:%D0%9B%D0%B5%D0%B4%D0%BD%D0%B8%D1%87%D0%BA%D0%B8_%D0%B7%D0%B5%D0%BC%D1%98%D0%B8%D1%88%D0%BD%D0%B8_%D0%BE%D0%B1%D0%BB%D0%B8%D1%86%D0%B8>.
  
  However, there are no langlink rows for the page in the Toolforge database 
replica, and the mkwiki API returns no langlinks for the page as well: See an 
API example 
<https://mk.wikipedia.org/w/api.php?action=query&format=json&prop=langlinks&titles=Category%3A%D0%9B%D0%B5%D0%B4%D0%BD%D0%B8%D1%87%D0%BA%D0%B8%20%D0%B7%D0%B5%D0%BC%D1%98%D0%B8%D1%88%D0%BD%D0%B8%20%D0%BE%D0%B1%D0%BB%D0%B8%D1%86%D0%B8%7CCategory%3A%D0%91%D0%BE%D0%BB%D0%B5%D1%81%D1%82%D0%B8%20%D0%BD%D0%B0%20%D1%86%D1%80%D0%BD%D0%B8%D0%BE%D1%82%20%D0%B4%D1%80%D0%BE%D0%B1>
 contrasting the missing langlinks with another recently created category, 
which lists them correctly.
  
  I guess this probably comes from some issue when syncing/updating changes in 
Wikidata to the local wiki database. It might be the same or similar issue as 
reported in T297238 <https://phabricator.wikimedia.org/T297238>? (In that case, 
feel free to mark this a duplicate.) However, even though I understand 
distributed systems will necessarily experience similar issues, I am not sure 
if there is any remedy available: Would any edit to the respective Wikidata 
item help force the refresh? Or removing and re-adding the corresponding mkwiki 
sitelink from Wikidata? Purging some of the pages? Something else?

TASK DETAIL
  https://phabricator.wikimedia.org/T299828

EMAIL PREFERENCES
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To: Mormegil
Cc: Aklapper, Mormegil, Invadibot, maantietaja, Akuckartz, Nandana, Lahi, Gq86, 
GoranSMilovanovic, QZanden, LawExplorer, _jensen, rosalieper, Scott_WUaS, 
Wikidata-bugs, aude, TTO, Mbch331
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