Use full date in citation label where necessary (#7002)

wirtschaftsuniversitat-wien-wirtschaftspadagogik.csl

@@ -15,7 +15,7 @@
     <category citation-format="author-date"/>
     <category field="social_science"/>
     <summary>Citation style for WU Vienna’s Institute for Business Education.</summary>
-    <updated>2017-01-05T15:41:14+00:00</updated>
+    <updated>2024-04-03T16:10:04+02:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
   <locale xml:lang="de">
@@ -183,13 +183,12 @@
   <macro name="u__issued">
     <choose>
       <if variable="issued">
-        <date variable="issued">
-          <date-part name="year"/>
-        </date>
+        <date variable="issued" form="numeric"/>
         <text variable="year-suffix"/>
       </if>
       <else>
         <text term="no date" form="short"/>
+        <text variable="year-suffix" prefix="-"/>
       </else>
     </choose>
   </macro>
@@ -406,10 +405,6 @@
           <text macro="u__edition"/>
           <text macro="u__type"/>
           <text macro="u__publisher"/>
-          <date delimiter="." variable="issued" suffix=".">
-            <date-part name="day" form="numeric-leading-zeros"/>
-            <date-part name="month" form="numeric-leading-zeros"/>
-          </date>
         </group>
       </else>
     </choose>