[MyFaces 1.2.3] changeValueListener not called on first change for dynamically added component. Ideas?

[Paul Spencer]

I am dynamically adding child components to a form via the forms's 
binding, <h:form .. binding="#{myBean.form}" />. My current challenge is 
related to the valueChangeListner.  Specifically the listener is not 
called on the first change, but is called twice on the second change. 
In addition the property being changed is updated in the response as 
expected on both the first and second change.

1) Any ideas why I am seeing this behavior out of the listener?
2) Are their some issues/pointers/pitfalls I should be aware of when 
dynamically adding child components to an existing bean?

Paul Spencer