Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Service/HeightStructuresDataSynchronizationService.cs
===================================================================
diff -u -rb2b9fdf365e70928a05c57966eeed30d9050e528 -rdd8f41ce9d9ff9fd570874721a114560c7a71013
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Service/HeightStructuresDataSynchronizationService.cs	(.../HeightStructuresDataSynchronizationService.cs)	(revision b2b9fdf365e70928a05c57966eeed30d9050e528)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Service/HeightStructuresDataSynchronizationService.cs	(.../HeightStructuresDataSynchronizationService.cs)	(revision dd8f41ce9d9ff9fd570874721a114560c7a71013)
@@ -76,7 +76,7 @@
             }
 
             var affectedItems = new List<IObservable>();
-            foreach (var calculation in failureMechanism.Calculations.Cast<StructuresCalculation<HeightStructuresInput>>())
+            foreach (StructuresCalculation<HeightStructuresInput> calculation in failureMechanism.Calculations.Cast<StructuresCalculation<HeightStructuresInput>>())
             {
                 affectedItems.AddRange(RingtoetsCommonDataSynchronizationService.ClearCalculationOutput(calculation)
                                                                                 .Concat(ClearHydraulicBoundaryLocation(calculation.InputParameters)));
@@ -99,12 +99,12 @@
             }
 
             var changedObjects = new List<IObservable>();
-            var removedObjects = failureMechanism.Sections.OfType<object>()
-                                                 .Concat(failureMechanism.SectionResults)
-                                                 .Concat(failureMechanism.CalculationsGroup.GetAllChildrenRecursive())
-                                                 .Concat(failureMechanism.ForeshoreProfiles)
-                                                 .Concat(failureMechanism.HeightStructures)
-                                                 .ToArray();
+            object[] removedObjects = failureMechanism.Sections.OfType<object>()
+                                                      .Concat(failureMechanism.SectionResults)
+                                                      .Concat(failureMechanism.CalculationsGroup.GetAllChildrenRecursive())
+                                                      .Concat(failureMechanism.ForeshoreProfiles)
+                                                      .Concat(failureMechanism.HeightStructures)
+                                                      .ToArray();
 
             failureMechanism.ClearAllSections();
             changedObjects.Add(failureMechanism);
@@ -139,7 +139,7 @@
                 .ToArray();
             foreach (StructuresCalculation<HeightStructuresInput> calculation in calculationWithRemovedHeightStructure)
             {
-                foreach (var calculationWithRemovedOutput in RingtoetsCommonDataSynchronizationService.ClearCalculationOutput(calculation))
+                foreach (IObservable calculationWithRemovedOutput in RingtoetsCommonDataSynchronizationService.ClearCalculationOutput(calculation))
                 {
                     changedObservables.Add(calculationWithRemovedOutput);
                 }