Fix constraints not being applied when a xml file was loaded.
Fix constraints not being applied when a xml file was loaded.

svn path=/trunk/KDE/kdepim/; revision=646724

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