forwardport of 118055 (fix sorting in combined view)
forwardport of 118055 (fix sorting in combined view)

svn path=/trunk/KDE/kdepim/akregator/; revision=498732

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi