We now only checking for name changes when the active pane has changed,

but that can only happen when we have already been woken up by a read
event, so there is no need for a timer, we can just check the changed
flag on the end of that read event (we already loop over the windows to
check for bells etc anyway).

server-window.c

@@ -49,6 +49,7 @@ server_window_loop(void)
 					server_status_session(s);
 			}
 		}
+		check_window_name(w);
 	}
 }