Fixed normal bug (EXT-3714) No landmarks is shown in expanded accordeon after filter has been used.

- Added applying filter upon accordion expansion to update currently filtered items.

--HG--
branch : product-engine

indra/newview/llpanellandmarks.cpp

@@ -505,6 +505,10 @@ void LLLandmarksPanel::onAccordionExpandedCollapsed(const LLSD& param, LLPlacesI
 		{
 			gInventory.startBackgroundFetch(cat_id);
 		}
+
+		// Apply filter substring because it might have been changed
+		// while accordion was closed. See EXT-3714.
+		filter_list(inventory_list, sFilterSubString);
 	}
 }