Navigation bug through browser previous button

[Clément Maignien <c....@edic-syliance.com>]

Hi everybody,
there's a bug in my webapp when I use the browser "previous page" navigation button instead of my custom links :
When clicking "previous page" the button, the previous page displays well but redisplays as soon a I do an action in the page and as a consequence skip it.
 
In my opinion, this could comes from the SERVER_STATE saving method associated to the redirect instruction in my faces-config.xml.
Does it comes from that ? if yes, is there a solution to this problem without switching to the CLIENT_STATE saving method ? if no, where does it comes from ?
 
Thanks for your help
Clément.