avoid duplicate entries in konqueror address completion list

history list is added to completion list giving duplicates.
Avoid this by removing duplicates

BUG: 144751
FIXED-IN: 4.9.1

konqueror/src/konqmainwindow.cpp

@@ -3177,6 +3177,7 @@ void KonqMainWindow::slotMatch( const QString &match )
          m_combo->completionMode() == KGlobalSettings::CompletionPopupAuto ) {
       QStringList items = m_pURLCompletion->allMatches();
       items += historyPopupCompletionItems( m_combo->currentText() );
+      items.removeDuplicates();  // when items from completion are also in history
       // items.sort(); // should we?
       m_combo->setCompletedItems( items );
     }