Fixed low bug EXT-4802 - Clearing whole teleport history doesn't clear TP history from nav bar

--HG--
branch : product-engine

indra/newview/llpanelteleporthistory.cpp

@@ -940,6 +940,9 @@ bool LLTeleportHistoryPanel::onClearTeleportHistoryDialog(const LLSD& notificati
 
 	if (0 == option)
 	{
+		// order does matter, call this first or teleport history will contain one record(current location)
+		LLTeleportHistory::getInstance()->purgeItems();
+
 		LLTeleportHistoryStorage *th = LLTeleportHistoryStorage::getInstance();
 		th->purgeItems();
 		th->save();

indra/newview/llteleporthistory.cpp

@@ -173,6 +173,8 @@ void LLTeleportHistory::purgeItems()
 	// reset the count
 	mRequestedItem = -1;
 	mCurrentItem = 0;
+
+	onHistoryChanged();
 }
 
 // static