Index: Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverFailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -r94f2ec1496623ae488b567f883e66b4d26243441 -rb6e6c2d3cc811c3365c0265d1ccd70f2ebac99ed
--- Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverFailureMechanismContextTreeNodeInfoTest.cs	(.../StabilityStoneCoverFailureMechanismContextTreeNodeInfoTest.cs)	(revision 94f2ec1496623ae488b567f883e66b4d26243441)
+++ Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverFailureMechanismContextTreeNodeInfoTest.cs	(.../StabilityStoneCoverFailureMechanismContextTreeNodeInfoTest.cs)	(revision b6e6c2d3cc811c3365c0265d1ccd70f2ebac99ed)
@@ -207,6 +207,7 @@
 
             var hydraulicBoundariesCalculationGroup = (StabilityStoneCoverWaveConditionsCalculationGroupContext) children[1];
             Assert.AreSame(failureMechanism.WaveConditionsCalculationGroup, hydraulicBoundariesCalculationGroup.WrappedData);
+            Assert.IsNull(hydraulicBoundariesCalculationGroup.Parent);
             Assert.AreSame(failureMechanism, hydraulicBoundariesCalculationGroup.FailureMechanism);
 
             var outputsFolder = (CategoryTreeFolder) children[2];