Sorry this isn't much help, but I can say for certain that I did not experience this when I upgraded our project to 2.0.0.GA. Also, I don't remember having to change any code to get it to work.
I'm changing it with a command button that has the localeSelector.select action.
I faced a problem on locale selector as defined in documentation. Everytime I hit the submit button, it doesn't change the locale as written in the documentantion. OTOH, it goes back to the default locale. If I wanted to be able to change the locale, I must set it up from my browser first. I didn't encounter this problem during the Seam 1.2.0.GA usage. Did anyone encounter the same problem as I did? I also could not find a samples on this too to reproduce the problem.
Thanks in advance.
I'm to take a look again.