The G.E.A.R. Tracking Beacon (the alternative to flight master's whistle for Gnome character who have done thier heritage quest) is appearing in 2 places, both in the generic items list and in the heartstone alternative list, removing line 141 should fix it

line 118 (correct):
168862 -- G.E.A.R. Tracking Beacon

line 141 (wrong):
168862, -- G.E.A.R. Tracking Beacon