Why is actionListener not being call after ajax:update and button not being rendered

Question

I'm trying to get a firm grasp on ajax but I'm afraid I'm at a lost. The code below renders the Wait button after clicking on the Join button. Join button's actionListener also gets called the first time. Then, after clicking on Wait, the Join button gets rendered but Wait button's actionListener is not called. Finally, when you click on Join nothing happens. This is a slight variation (I'm hoping) of this question (in case any of you saw something similar)

commandButton inactive after ajax rendering

If this is a duplicate question I'm sorry. If BalusC answered this already from the question I posted, I'm frankly not understanding the cause. I'm at the point where nothing makes sense anymore. I'm sure it's silly but can someone please explain what is happening ?

<h:form>
    <p:commandButton id="Join" actionListener = "#{connexion.joinWaitingList}"
                     update="@form" rendered="#{connexion.renderJoinButton}"
                     value="Join"/>
    <p:commandButton id="leave" actionListener = "#{connexion.leaveWaitingList}" 
                     update="@form" rendered="#{connexion.renderWaitButton}" 
                     value="Wait"/>
</h:form>

The java code

import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;

@ManagedBean
@ViewScoped
public class Connexion implements java.io.Serializable {
    private boolean renderJoinButton; 
    private boolean renderWaitButton; 

    public Connexion() {
        renderJoinButton = true; 
        renderWaitButton = false; 
    }

    public boolean isRenderJoinButton() {
        return renderJoinButton;
    }

    public void setRenderJoinButton(boolean renderJoinButton) {
        this.renderJoinButton = renderJoinButton;
    }

    public boolean isRenderWaitButton() {
        return renderWaitButton;
    }

    public void setRenderWaitButton(boolean renderWaitButton) {
        this.renderWaitButton = renderWaitButton;
    }

    public void joinWaitingList() {
        System.out.println("Waiting list joined"); 
        renderJoinButton = false; 
        renderWaitButton = true; 
    }

    public void leaveWaitingList() {
        System.out.println("Waiting list abandoned");
        renderJoinButton = true; 
        renderWaitButton = false; 
    }
}

UPDATE

I am using JSF 2.2 with PrimeFaces 3.5

UPDATE #2

This seems to work with JSF 2.1 and 2.0.10. It doesn't work with JSF 2.2. I have posted this issue on Primefaces forum. I'll update this post once I get a reply from them.

UPDATE #3

Thanks to jhond, I was made aware of a bug. Also, one of the primefaces community members got back to me and said "only latest snapshot is kind of compatible".