tdefile: autocalculate folder size in KPropertiesDialog only for real local items.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

tdeio/tdefile/kpropertiesdialog.cpp

@@ -1030,8 +1030,8 @@ KFilePropsPlugin::KFilePropsPlugin( KPropertiesDialog *_props )
     sizelay->addWidget(m_sizeStopButton, 0);
     sizelay->addStretch(10); // so that the buttons don't grow horizontally
 
-    // auto-launch for local dirs only, and not for '/'
-    if ( isLocal && !hasRoot )
+    // auto-launch for local dirs only, but not for '/' or medias
+    if ( isReallyLocal && !hasRoot )
     {
       m_sizeDetermineButton->setText( i18n("Refresh") );
       slotSizeDetermine();