Fix tournament bracket parsing's ruleset refetch logic not working co…

…rrectly

Due to equality being based on `ShortName`, it was feasible that the
re-fetch exited early (in bindable shortcutting logic) causing the
ruleset's `OnlineID` to remain `-1` or something equally wrong.

Resolves issue pointed out at
#17538 (reply in thread).

osu.Game.Tournament/TournamentGameBase.cs

@@ -66,6 +66,18 @@ private void load(Storage baseStorage)
             dependencies.CacheAs(new StableInfo(storage));
         }
 
+        protected override void LoadComplete()
+        {
+            MenuCursorContainer.Cursor.AlwaysPresent = true; // required for tooltip display
+
+            // we don't want to show the menu cursor as it would appear on stream output.
+            MenuCursorContainer.Cursor.Alpha = 0;
+
+            base.LoadComplete();
+
+            Task.Run(readBracket);
+        }
+
         private void readBracket()
         {
             try
@@ -79,10 +91,14 @@ private void readBracket()
 
                 ladder ??= new LadderInfo();
 
-                ladder.Ruleset.Value = ladder.Ruleset.Value != null
+                var resolvedRuleset = ladder.Ruleset.Value != null
                     ? RulesetStore.GetRuleset(ladder.Ruleset.Value.ShortName)
                     : RulesetStore.AvailableRulesets.First();
 
+                // Must set to null initially to avoid the following re-fetch hitting `ShortName` based equality check.
+                ladder.Ruleset.Value = null;
+                ladder.Ruleset.Value = resolvedRuleset;
+
                 bool addedInfo = false;
 
                 // assign teams
@@ -280,18 +296,6 @@ void populate()
             }
         }
 
-        protected override void LoadComplete()
-        {
-            MenuCursorContainer.Cursor.AlwaysPresent = true; // required for tooltip display
-
-            // we don't want to show the menu cursor as it would appear on stream output.
-            MenuCursorContainer.Cursor.Alpha = 0;
-
-            base.LoadComplete();
-
-            Task.Run(readBracket);
-        }
-
         protected virtual void SaveChanges()
         {
             if (!bracketLoadTaskCompletionSource.Task.IsCompletedSuccessfully)