Merge pull request #25539 from default0/fix-slider-drawing-with-snap

Fix freehand-drawn sliders with distance snap

Author: bdach

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/SliderPlacementBlueprint.cs

@@ -175,6 +175,7 @@ protected override bool OnDragStart(DragStartEvent e)
             if (controlPointCount > 2 || (controlPointCount == 2 && HitObject.Path.ControlPoints.Last() != cursor))
                 return base.OnDragStart(e);
 
+            bSplineBuilder.AddLinearPoint(Vector2.Zero);
             bSplineBuilder.AddLinearPoint(ToLocalSpace(e.ScreenSpaceMouseDownPosition) - HitObject.Position);
             state = SliderPlacementState.Drawing;
             return true;