Creating a course list triggers an error in the logs:
java.lang.ClassCastException: org.ametys.odf.courselist.CourseList cannot be cast to org.ametys.cms.repository.Content
at org.ametys.web.synchronization.SynchronizeContentAdditionObserver._internalObserve(SynchronizeContentAdditionObserver.java:64)
at org.ametys.web.synchronization.AbstractSynchronizeObserver.observe(AbstractSynchronizeObserver.java:84)
at org.ametys.cms.observation.ObservationManager.notify(ObservationManager.java:95)
at org.ametys.odf.courselist.actions.AddCourseListAction.act(AddCourseListAction.java:111)
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