Don't copy an empty string to the clipboard. Ideally this should be handled by disable-ing the menu/shortcuts for Copy/Cut/Paste (Wish 203768).

BUG: 188725

svn path=/trunk/KDE/kdebase/apps/konsole/; revision=1076289

src/TerminalDisplay.cpp

@@ -2444,7 +2444,8 @@ void TerminalDisplay::copyClipboard()
       return;
 
   QString text = _screenWindow->selectedText(_preserveLineBreaks);
-  QApplication::clipboard()->setText(text);
+  if (!text.isEmpty())
+    QApplication::clipboard()->setText(text);
 }
 
 void TerminalDisplay::pasteClipboard()