Fix room host not being set

osu.Game.Tests/Visual/TestCaseRoomSettings.cs

@@ -26,7 +26,7 @@ namespace osu.Game.Tests.Visual
                 MaxParticipants = { Value = 10 },
             };
 
-            Add(overlay = new TestRoomSettingsOverlay(room)
+            Add(overlay = new TestRoomSettingsOverlay
             {
                 RelativeSizeAxes = Axes.Both,
                 Height = 0.75f,

osu.Game/Screens/Multi/Components/CreateRoomOverlay.cs

@@ -0,0 +1,20 @@
+// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Framework.Allocation;
+using osu.Game.Online.API;
+
+namespace osu.Game.Screens.Multi.Components
+{
+    public class CreateRoomOverlay : RoomSettingsOverlay
+    {
+        [Resolved]
+        private APIAccess api { get; set; }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Room.Host.Value = api.LocalUser;
+        }
+    }
+}

osu.Game/Screens/Multi/Screens/Lounge/Lounge.cs

@@ -71,7 +71,7 @@ namespace osu.Game.Screens.Multi.Screens.Lounge
                         new Container
                         {
                             RelativeSizeAxes = Axes.Both,
-                            Child = settings = new RoomSettingsOverlay
+                            Child = settings = new CreateRoomOverlay
                             {
                                 RelativeSizeAxes = Axes.Both,
                                 Height = 0.9f,