Don't crash when trying to activate groupware folders, the account was 0 for me.
Don't crash when trying to activate groupware folders, the account was 0 for me.

svn path=/trunk/KDE/kdepim/; revision=950884

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