6.8. Conversational components and JSF component bindings
Conversational components have one minor limitation: they cannot be used to hold bindings to JSF components. (We generally prefer not to use this feature of JSF unless absolutely necessary, since it creates a hard dependency from application logic to the view.) On a postback request, component bindings are updated during the Restore View phase, before the Seam conversation context has been restored.
To work around this use an event scoped component to store the component bindings and inject it into the conversation scoped component that requires it.