The Portlet Bridge will no longer store updates to objects in the Bridge Request Scope that occurred during an Ajax request. This means that any JSF Managed Beans, or attributes set on the FacesContext, will no longer be updated after an Ajax request. Any subsequent re rendering of the portlet will show the values of these objects as they were before the Ajax request.
It is possible to revert to the previous behavior, of the data being stored in the Bridge Request Scope after an Ajax request, by setting the following context param in web.xml:
If the above parameter is set to true, such that data is saved in the Bridge Request Scope after an Ajax request, it is possible to disable the saving of Faces Messages with the following context param in web.xml:
Disabling the saving of Faces Messages after an Ajax request would be beneficial if your portlet has a mix of Ajax and Full Page requests, and you are not concerned with error messages resulting from an Ajax request disappearing if the portlet is refreshed.