KMail seems to be crashing lots in threaded mode when deleting mail. Try to prevent that from happening, and also fix the very buggy behavior of deleting messages in threaded mode.
KMail seems to be crashing lots in threaded mode when deleting mail.
Try to prevent that from happening, and also fix the very buggy
behavior of deleting messages in threaded mode.

svn path=/trunk/kdenetwork/kmail/; revision=178156

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