Merge pull request #4822 from BorjaSanchezBeezNest/fix_example_quiz

Fix example quiz when add default course content

Author: AngelFQC

main/inc/lib/add_course.lib.inc.php

@@ -1048,7 +1048,7 @@ public static function fill_db_course(
  $question->position = 1;
  $question->course = $courseInfo;
  $question->save($exercise);
- $questionId = $question->id;
+ $questionId = $question->iid;
 
  $answer = new Answer($questionId, $courseInfo['real_id']);