fix: Optional Question ' Leaves Variable Tag in Event Name (#22175)

packages/lib/event.ts

@@ -104,6 +104,8 @@ export function getEventName(eventNameObj: EventNameObjectType, forAttendeeView
       }
 
       dynamicEventName = dynamicEventName.replace(`{${variable}}`, fieldValue || "");
+    } else {
+      dynamicEventName = dynamicEventName.replace(`{${variable}}`, "");
     }
   });