Fix control points with same timestamp potentially being parsed incorrectly

osu.Game/Beatmaps/ControlPoints/ControlPoint.cs

@@ -12,6 +12,11 @@ namespace osu.Game.Beatmaps.ControlPoints
         /// </summary>
         public double Time;
 
+        /// <summary>
+        /// Whether this timing point was generated internally, as opposed to parsed from the underlying beatmap.
+        /// </summary>
+        internal bool AutoGenerated;
+
         public int CompareTo(ControlPoint other) => Time.CompareTo(other.Time);
 
         /// <summary>