Refactorings

osu.Game/Screens/OnlinePlay/IRoomManager.cs

@@ -23,10 +23,22 @@ namespace osu.Game.Screens.OnlinePlay
         /// </summary>
         IBindableList<Room> Rooms { get; }
 
+        /// <summary>
+        /// Adds a <see cref="Room"/> to this <see cref="IRoomManager"/>.
+        /// If already existing, the local room will be updated with the given one.
+        /// </summary>
+        /// <param name="room">The incoming <see cref="Room"/>.</param>
         void AddOrUpdateRoom(Room room);
 
+        /// <summary>
+        /// Removes a <see cref="Room"/> from this <see cref="IRoomManager"/>.
+        /// </summary>
+        /// <param name="room">The <see cref="Room"/> to remove.</param>
         void RemoveRoom(Room room);
 
+        /// <summary>
+        /// Removes all <see cref="Room"/>s from this <see cref="IRoomManager"/>.
+        /// </summary>
         void ClearRooms();
 
         /// <summary>

osu.Game/Screens/OnlinePlay/Multiplayer/MultiplayerLoungeSubScreen.cs

@@ -43,7 +43,7 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer
             base.OnResuming(last);
 
             // Upon having left a room, we don't know whether we were the only participant, and whether the room is now closed as a result of leaving it.
-            // To work around this, temporarily clear all rooms until the next listing poll.
+            // To work around this, temporarily remove the room and trigger an immediate listing poll.
             if (last is MultiplayerMatchSubScreen match)
             {
                 RoomManager.RemoveRoom(match.Room);