Fix inverted ternary

See #1935 - repeat index 1 is at the end of the slider, not the start.

osu.Game.Rulesets.Osu/Objects/Drawables/DrawableRepeatPoint.cs

@@ -72,6 +72,6 @@ protected override void UpdateCurrentState(ArmedState state)
             }
         }
 
-        public void UpdateSnakingPosition(Vector2 start, Vector2 end) => Position = repeatPoint.RepeatIndex % 2 == 1 ? start : end;
+        public void UpdateSnakingPosition(Vector2 start, Vector2 end) => Position = repeatPoint.RepeatIndex % 2 == 1 ? end : start;
     }
 }