Add reverse fill flows & depth specs at usage sites for correct Z-ordering

osu.Game/Overlays/BeatmapListingOverlay.cs

@@ -151,7 +151,7 @@ namespace osu.Game.Overlays
                 }
 
                 // spawn new children with the contained so we only clear old content at the last moment.
-                var content = new FillFlowContainer<BeatmapCard>
+                var content = new ReverseChildIDFillFlowContainer<BeatmapCard>
                 {
                     RelativeSizeAxes = Axes.X,
                     AutoSizeAxes = Axes.Y,

osu.Game/Overlays/Profile/ProfileSection.cs

@@ -11,6 +11,7 @@ using osu.Framework.Graphics.Shapes;
 using osu.Framework.Localisation;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Backgrounds;
+using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Online.API.Requests.Responses;
 
@@ -22,7 +23,7 @@ namespace osu.Game.Overlays.Profile
 
         public abstract string Identifier { get; }
 
-        private readonly FillFlowContainer content;
+        private readonly FillFlowContainer<Drawable> content;
         private readonly Box background;
         private readonly Box underscore;
 
@@ -79,7 +80,7 @@ namespace osu.Game.Overlays.Profile
                                 }
                             }
                         },
-                        content = new FillFlowContainer
+                        content = new ReverseChildIDFillFlowContainer<Drawable>
                         {
                             Direction = FillDirection.Vertical,
                             AutoSizeAxes = Axes.Y,

osu.Game/Overlays/Profile/Sections/PaginatedProfileSubsection.cs

@@ -13,6 +13,7 @@ using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.API;
+using osu.Game.Graphics.Containers;
 using osu.Game.Online.API.Requests.Responses;
 using osuTK;
 
@@ -26,7 +27,7 @@ namespace osu.Game.Overlays.Profile.Sections
         protected int VisiblePages;
         protected int ItemsPerPage;
 
-        protected FillFlowContainer ItemsContainer { get; private set; }
+        protected ReverseChildIDFillFlowContainer<Drawable> ItemsContainer { get; private set; }
 
         private APIRequest<List<TModel>> retrievalRequest;
         private CancellationTokenSource loadCancellation;
@@ -48,11 +49,12 @@ namespace osu.Game.Overlays.Profile.Sections
             Direction = FillDirection.Vertical,
             Children = new Drawable[]
             {
-                ItemsContainer = new FillFlowContainer
+                ItemsContainer = new ReverseChildIDFillFlowContainer<Drawable>
                 {
                     AutoSizeAxes = Axes.Y,
                     RelativeSizeAxes = Axes.X,
                     Spacing = new Vector2(0, 2),
+                    Depth = float.MinValue
                 },
                 moreButton = new ShowMoreButton
                 {

osu.Game/Overlays/Rankings/SpotlightsLayout.cs

@@ -135,7 +135,7 @@ namespace osu.Game.Overlays.Rankings
             Children = new Drawable[]
             {
                 new ScoresTable(1, response.Users),
-                new FillFlowContainer
+                new ReverseChildIDFillFlowContainer<BeatmapCard>
                 {
                     AutoSizeAxes = Axes.Y,
                     RelativeSizeAxes = Axes.X,