Restore minimized windows again minimized by session management.
Restore minimized windows again minimized by session management.

svn path=/trunk/kdenetwork/kmail/; revision=128229

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