Revert "Remove pointless test"

This reverts commit 51f9377e3d.

osu.Game.Rulesets.Taiko.Tests/Editor/TestSceneTaikoEditorSaving.cs

@@ -0,0 +1,33 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using NUnit.Framework;
+using osu.Framework.Utils;
+using osu.Game.Tests.Visual;
+
+namespace osu.Game.Rulesets.Taiko.Tests.Editor
+{
+    public partial class TestSceneTaikoEditorSaving : EditorSavingTestScene
+    {
+        protected override Ruleset CreateRuleset() => new TaikoRuleset();
+
+        [Test]
+        public void TestTaikoSliderMultiplier()
+        {
+            AddStep("Set slider multiplier", () => EditorBeatmap.Difficulty.SliderMultiplier = 2);
+
+            SaveEditor();
+
+            AddAssert("Beatmap has correct slider multiplier", assertTaikoSliderMulitplier);
+
+            ReloadEditorToSameBeatmap();
+
+            AddAssert("Beatmap still has correct slider multiplier", assertTaikoSliderMulitplier);
+
+            bool assertTaikoSliderMulitplier()
+            {
+                return Precision.AlmostEquals(EditorBeatmap.Difficulty.SliderMultiplier, 2);
+            }
+        }
+    }
+}