ManagedProperty is not changed when locale set programmatically

Question

I defining my locales in faces-config.xml as descibed here: JSF 2 localization (managed bean)

And for the EL in my XHTML pages it is working. Even when I switch my language. But the @ManagedProperty("#{msgs}") in my managed bean is not changed.

How can I change the @ManagedProperty Locale ?