webflow 2.0.6 ManySelectionTrackingListDataModel class bug

[alireza]

hi
I want to report a bug that I found in webflow 2.0.6.

Suppose that you have scenario like this

so you must use ManySelectionTrackingListDataModel for handling check Box click:
userAdd-flow.xml:

...
<evaluate expression="userForm.getRoleList(messageContext)" result="flowScope.roles" result-type="org.springframework.faces.model.ManySelectionTrackingListDataModel" />
...

userEdit.xhtml:

...
<h:selectBooleanCheckbox id="selector" value="#{roles.currentRowSelected}"/>
...

when you click confirm button all of selected check box will be cleared:

because of implementation of setCurrentRowSelected in ManySelectionTrackingListDataModel :

public void setCurrentRowSelected(boolean rowSelected) {
		if (!isRowAvailable()) {
			return;
		}
		if (rowSelected && !selections.contains(getRowData())) {
		    selections.add(getRowData());
		}
		else {
		    selections.remove(getRowData());
		}
	}

I changed this method to this:

public void setCurrentRowSelected(boolean rowSelected) {
		if (!isRowAvailable()) {
			return;
		}
		if (rowSelected && !selections.contains(getRowData())) {
		    selections.add(getRowData());
		}
		else if (!rowSelected && selections.contains(getRowData())) {
		    selections.remove(getRowData());
		}
	}

and now it works very good.

so is there anyone who have better solution for this scenario?