Fix bug 69854 (Reply doesn't work if I open message in separate window)

In MboxJob we do the same (I mean, why get a message we already have?) and Zack agreed that it's correct.

svn path=/trunk/kdepim/; revision=272572

maildirjob.cpp

@@ -78,7 +78,7 @@ void MaildirJob::startJob()
   switch( mType ) {
   case tGetMessage:
     {
-      KMMessage* msg = mParentFolder->getMsg( mParentFolder->find( mMsgList.first() ) );
+      KMMessage* msg = mMsgList.first();
       if ( msg ) {
         msg->setComplete( true );
         emit messageRetrieved( msg );