Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsWaveConditionsOutput.cs
===================================================================
diff -u -rdecccf5efb0ae872940d8d51b6de9978d13ecb37 -r07f3d67fe9512b3c8303ff09398b0a234900d546
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsWaveConditionsOutput.cs	(.../GrassCoverErosionOutwardsWaveConditionsOutput.cs)	(revision decccf5efb0ae872940d8d51b6de9978d13ecb37)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsWaveConditionsOutput.cs	(.../GrassCoverErosionOutwardsWaveConditionsOutput.cs)	(revision 07f3d67fe9512b3c8303ff09398b0a234900d546)
@@ -31,7 +31,7 @@
     /// <summary>
     /// Container for the results of a grass cover erosion outwards wave conditions calculation.
     /// </summary>
-    public class GrassCoverErosionOutwardsWaveConditionsOutput : Observable, ICalculationOutput
+    public class GrassCoverErosionOutwardsWaveConditionsOutput : CloneableObservable, ICalculationOutput
     {
         /// <summary>
         /// Creates a new instance of <see cref="GrassCoverErosionOutwardsWaveConditionsOutput"/>.
@@ -53,9 +53,9 @@
         /// </summary>
         public IEnumerable<WaveConditionsOutput> Items { get; private set; }
 
-        public object Clone()
+        public override object Clone()
         {
-            var clone = (GrassCoverErosionOutwardsWaveConditionsOutput) MemberwiseClone();
+            var clone = (GrassCoverErosionOutwardsWaveConditionsOutput) base.Clone();
 
             clone.Items = Items.Select(s => (WaveConditionsOutput) s.Clone()).ToArray();