Last modified: 2012-03-26 15:15:59 UTC
Previous discussion: [[commons:User_talk:Saibo#Anzeigeproblem bei (Unter-)Kats]] For example (now fixed) form 9th March: [[:commons:Category:7th-century conflicts]] has the sub cats [[:commons:Category:620s conflicts]], [[:commons:Category:630s conflicts]] and [[:commons:Category:650s conflicts]] but they were not shown on [[:commons:Category:7th-century conflicts]]. [[:commons:Category:680s conflicts]] ''was'' shown. The template which sets the cat [[:commons:template:ConflictsDecade]] was not edited for a long time. A fix was done by null-editing the subcat pages. Now they show up correctly. This problem may may lead to apparently empty categories but in fact only the sub cats are not shown ''currently''. This problem appeared in December 2011 in dewp: [[:de:Wikipedia Diskussion:Mentorenprogramm/Archiv/2011/Dezember#nur nochmal zur anschauung|MP]], [[:de:Wikipedia:Administratoren/Anfragen/Archiv/2011/Dezember#Benutzer:Ianusius/Mentees|AAF]]. Another example: [[:de:Spezial:Unbenutzte Kategorien]] lists currently (cached version 2012-03-19, 19:59:03) [[:de:Kategorie:User hes-1]], [[:de:Kategorie:User hes-3]], [[:de:Kategorie:User hes-4]] ([[:de:Kategorie:User hes-2]] is not listed since it contains also a user page) although they contain the page [[:de:Wikipedia:Babel/Dialekt/hes]] (created on 2012-02-20). This page was nulledited yesterday to workaround the problem. Example 3: [[:de:Wikipedia:Dateiüberprüfung/Lokal_behaltbare,_aber_auf_Commons_gefährdete_Dateien]] was listed in [[:de:Kategorie:Wikipedia:Dateiüberprüfung/Besondere Fälle]] but this category did not appear on the page. Apparent reason: the category was set via a template ([[:de:... /Vorlage]]) which sets the category if the linked file is missing. The linked file was missing when the link was created (using the template) but was created afterwards. The category list on the page was correctly updated but the page was not delisted on the category page. A nulledit on the page (IIRC) to the page fixed it.
summary: Example1: subcats were not listed in supercat although it should be Example2: pages were not listed in supercat although it should be Example3: page was listed in supercat although in should not be At least at example3 the page and the category in which the page was in had inconsistent views.
Example4: [[:de:Kategorie:User_arn-4]] (created 2012-03-22T16:41:22 UTC+1) is empty (according to the cat page text "This category currently contains no pages or media."). But: [[:de:Wikipedia:Babel/arn]] (last edit 2009-02-04) /is/ in [[:de:Kategorie:User arn-4]] according to the page footer. Purging did not help - probably nullediting helps, but is NOT done here to preserve this test case. Btw: Credits to [[:de:User:Geitost]] for three of the test cases.
