add missed initial event pulse

src/profile/history/item.rs

@@ -42,7 +42,11 @@ impl Item {
     pub fn close(&mut self) {
         match self.closed {
             Some(ref mut closed) => closed.pulse(),
-            None => self.closed = Some(Event::new()),
+            None => {
+                let mut event = Event::new();
+                event.pulse();
+                self.closed = Some(event)
+            }
         }
     }
 }