As already mentioned in this article (http:www10.lotus.comlddddwiki.nsfdxWhatsNewin852forXPagesdisableValidation) a new validation enhancement has been added to XPages in R852. It's an option that allows you to disable validation and save data at the same time. And this is a short ...

You have an XPage with a tabbed panel and a submit button. Each tab contains required fields however validation only occurs on the tab that currently has focus. Hence, if you submit the page, validation does not occur on the tabs which do not have focus. This behavior is working as designed and an ...