If you start discussion on a document, and you create a new topic … when you try to delete the topic alfresco answer: Are you sure you want to delete "null" and all its posts? (sometimes "null" or other name) If you cancel delete, view details, after that it works ok: Are you sure you want to delete "Example" and all its posts? I realize that it was fixed in Alfresco 1.4, it can be easily fixed in my version?