mvvmfx/src/main/java/de/saxsys/mvvmfx/utils/itemlist/ListTransformation.java
private void initListEvents() {
		this.listChangeListener = new ListChangeListener<SourceType>() {
			@Override
			public void onChanged(
					Change<? extends SourceType> listEvent) {
				
				// We have to stage delete events, because if we process them
				// separately, there will be unwanted ChangeEvents on the
				// targetList
				List<TargetType> deleteStaging = new ArrayList<>();
				
				
				while (listEvent.next()) {
					if (listEvent.wasUpdated()) {
						processUpdateEvent(listEvent);
					} else if (listEvent.wasReplaced()) {
						processReplaceEvent(listEvent, deleteStaging);
					} else if (listEvent.wasAdded()) {
						processAddEvent(listEvent);
					} else if (listEvent.wasRemoved()) {
						processRemoveEvent(listEvent, deleteStaging);
					}
				}
				
				// Process the staged elements
				processStagingLists(deleteStaging);
			}
		};
		modelListProperty().addListener(
				new WeakListChangeListener<>(listChangeListener));
		
	}
private void initListEvents() {
		this.listChangeListener = new ListChangeListener<SourceType>() {
			@Override
			public void onChanged(
					Change<? extends SourceType> listEvent) {
				
				// We have to stage delete events, because if we process them
				// separately, there will be unwanted ChangeEvents on the
				// targetList
				List<TargetType> deleteStaging = new ArrayList<>();
				
				
				while (listEvent.next()) {
					if (listEvent.wasUpdated()) {
						processUpdateEvent(listEvent);
					} else if (listEvent.wasReplaced()) {
						processReplaceEvent(listEvent, deleteStaging);
					} else if (listEvent.wasAdded()) {
						processAddEvent(listEvent);
					} else if (listEvent.wasRemoved()) {
						processRemoveEvent(listEvent, deleteStaging);
					}
				}
				
				// Process the staged elements
				processStagingLists(deleteStaging);
			}
		};
		modelListProperty().addListener(
				new WeakListChangeListener<>(listChangeListener));
		
	}
If the list changed we want the recreate the targetType representation