QListView tried to show the tooltip with the subject of a message which was just added to the current folder. For some reason getting the corresponding MsgBase object failed and KMail bailed out. Simply return an empty string if this should ever happen again.

svn path=/branches/KDE/3.5/kdepim/; revision=454658

headeritem.cpp

@@ -145,7 +145,8 @@ QString HeaderItem::text( int col) const
   KMMsgBase *mMsgBase = headers->folder()->getMsgBase( mMsgId );
   QString tmp;
 
-  assert(mMsgBase);
+  if ( !mMsgBase )
+    return QString();
 
   if ( col == headers->paintInfo()->senderCol ) {
     if ( (headers->folder()->whoField().lower() == "to") && !headers->paintInfo()->showReceiver )