This is a reply to
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4184699
The forum would not let me reply for some reason. Maybe the markup in the posting broke the page somehow. When replying all I see is a grey area where the subject and reply could be typed.
I replaced some of the rich:dataTable with a4j:repeat and the problem disappeared.
So
https://jira.jboss.org/jira/browse/RF-3341
appears to be my problem as you suggested.
I would greatly appreciate some workaround to this problem.
Actually I see a workaround on the jira.
I will now try a4j:region with renderRegionOnly=true inside tab form.
I will post back here the results.