Fix crash when opening a mail with a TNEF attachment in the composer.
Fix crash when opening a mail with a TNEF attachment in the composer.

svn path=/branches/kdepim/enterprise/kdepim/; revision=635961

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