core_data ...

templates/xml/core_data.xml

-{% autoescape false %}<dcc:coreData>
+    <dcc:coreData>
       <dcc:countryCodeISO3166_1>
         {{doc.administrativeData.coreData.countryCodeISO3166_1}}
       </dcc:countryCodeISO3166_1>
@@ -8,8 +8,16 @@
       <dcc:mandatoryLangCodeISO639_1>
         {{doc.administrativeData.coreData.mandatoryLangCodeISO639_1}}
       </dcc:mandatoryLangCodeISO639_1>
-      <dcc:uniqueIdentifier></dcc:uniqueIdentifier>
-      <dcc:receiptDate></dcc:receiptDate>
-      <dcc:beginPerformanceDate></dcc:beginPerformanceDate>
-      <dcc:endPerformanceDate></dcc:endPerformanceDate>
-    </dcc:coreData>{% endautoescape %}
+      <dcc:uniqueIdentifier>
+        {{doc.administrativeData.coreData.uniqueIdentifier}}
+      </dcc:uniqueIdentifier>
+      <dcc:receiptDate>
+        {{doc.administrativeData.coreData.receiptDate}}
+      </dcc:receiptDate>
+      <dcc:beginPerformanceDate>
+        {{doc.administrativeData.coreData.beginPerformanceDate}}
+      </dcc:beginPerformanceDate>
+      <dcc:endPerformanceDate>
+        {{doc.administrativeData.coreData.endPerformanceDate}}
+      </dcc:endPerformanceDate>
+    </dcc:coreData>