Course/SOAP: Fix that title defaults to dummy when using updateCourse

See: https://mantis.ilias.de/view.php?id=42079

Author: mjansenDatabay

webservice/soap/classes/class.ilSoapCourseAdministration.php

@@ -398,6 +398,7 @@ public function updateCourse(string $sid, int $course_id, string $xml)
         include_once 'Modules/Course/classes/class.ilCourseXMLParser.php';
 
         $xml_parser = new ilCourseXMLParser($tmp_course);
+        $xml_parser->setMode(ilCourseXMLParser::MODE_SOAP);
         $xml_parser->setXMLContent($xml);
         $xml_parser->startParsing();
         $tmp_course->MDUpdateListener('General');