             }
             return "Office Hours"
         default:
-            return title ?? ""
+            return title ?? nil
         }
     }
 

    /***************************************************/

    /** The main name of this session */
    public var formattedTitle: String {
        switch self.type {
        case .workshop, .meetup, .party:
            if let event = event {
                return event.localizedTitle
            }
            return ""
        case .talk:
            if let presentation = presentation {
                return presentation.title
            }
            return ""
        case .sponsoredDemo:
            return NSLocalizedString("Sponsored Demo", comment: "")
        case .coffeeBreak:

            if let sponsor = sponsor {
                return sponsor.name
            }
            return nil
        case .talk:
            if let presentation = presentation {
                return presentation.speaker?.name ?? ""
            }
            return nil
        case .sponsoredDemo:
            return sponsor!.name
        case .coffeeBreak:
            if let sponsor = sponsor {
                return sponsor.name
            }
            return nil
        case .officeHours:
            if let presentation = presentation {
                return presentation.speaker?.name
            }
            return "⁉️"
        default:
            return nil
        }
    }

