Primefaces Datatable + Row Expansion with updating component - jsf

Question

I have a datatable that has a collection of objects that is initialized on page load. It is not lazy loaded.
In this datatable row, I have a row expansion object that I wish to "toggle" depending on a boolean value for the object in that row (inputSwitch tag in Primefaces). Once that is toggled, I update the DOM and render the sub collection using the "rendered" attribute for the rowExpansion (which I suspect might be the problem, because I think that requires a DOM refresh)
However, whenever I hit the first inputSwitch (the main toggle), it reloads the entire collection and wipes out the changes that have been made.
<p:dataTable
id="myTable"
var="row"
reflow="true"
expandedRow="true"
filteredValue="#{mybean.filteredAllObjects}"
value="#{mybean.allObjects}">
<p:column>
<p:inputSwitch value="#{row.boolSelected}">
<p:ajax update=":myform:myTable"/>
</p:inputSwitch>
</p:column>
<p:rowExpansion rendered="#{row.boolSelected}">
<ui:repeat value="#{row.subsetCollection}" var="subsetRow">
<p:inputSwitch value="#{subsetRow.boolSelected}"/>
</ui:repeat>
</p:rowExpansion>
</p:dataTable>
How can I essentially keep the state of the collection on the client side without the need to re-render the collection (and thus eliminating all changes)?
Edit
Backing bean (simplified - it's really this simplistic). When the ajax call is made in the front end, the getter for the collection is called (breakpoint confirms this). Also see a POST is happening, so a call to the server is made:
#Component
#ViewScoped
public class MyBean implements Serializable
{
private static final long serialVersionUID = 1L;
private List<MyObject> allObjects;
private List<MyObject> filteredAllObjects;
public MyBean(#Value("#{param['id']}") String selectedId)
{
init();
}
private void init()
{
allObjects = ... // call to get objects from DB
}
// Setters & Getters
}