I want set PAGEA only could be seen by a group of users, say GROUPA.
So, I denied the view right for XWikiAllGroup, and explicitly give the right of view to GROUPA.
While, still users of GROUPA could not see PAGEA. This must be a conflict of GROUPA and XWikiAllGroup. But how could I resolve it? Should I remove all users of GROUPA from XWikiAllGroup? But it is said to be a best practice that all users should stay in XWikiAllGroup.