Fixed a problem with the unread message count becoming corrupted, only happened for trash when empty trash on exit was checked on.
Fixed a problem with the unread message count becoming corrupted, only happened for trash when empty trash on exit was checked on.

svn path=/trunk/kdenetwork/kmail/; revision=51244

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