backport SVN commit 833848 by winterz:
backport SVN commit 833848 by winterz:

fix showstopper "crash on adding new feed".
well, sorta.

svn path=/branches/KDE/4.1/kdepim/; revision=833854

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