small change

core.lua

@@ -253,13 +253,14 @@ function Aux.AuctionFrameAuctions_OnEvent(...)
 end
 
 function Aux.on_auction_house_show()
-    if not UnitFactionGroup('npc') then
-        Aux.neutral = true
-    end
     AuxFrame:Show()
     Aux.tab_group:set_tab(1)
 end
 
+function Aux.neutral_faction()
+    return not UnitFactionGroup('npc')
+end
+
 function Aux.on_auction_house_closed()
 	Aux.post.stop()
 	Aux.stack.stop()

post_frame.lua

@@ -615,7 +615,7 @@ function private.update_item_configuration()
         private.stack_count_slider.editbox:SetNumber(private.stack_count_slider:GetValue())
 
         do
-            local deposit_factor = Aux.neutral and 0.25 or 0.05
+            local deposit_factor = Aux.neutral_faction() and 0.25 or 0.05
             local stack_size = private.stack_size_slider:GetValue()
             local stack_count
             stack_count = private.stack_count_slider:GetValue()