From 7f5629fc2abf1147f1b12beefc8c3b3f6f245c1a Mon Sep 17 00:00:00 2001
From: Wuzzy <almikes@aol.com>
Date: Thu, 2 Mar 2017 23:45:42 +0100
Subject: [PATCH] Hoppers suck non-fuel items from furnace fuel slot

---
 mods/ITEMS/mcl_hoppers/init.lua | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mods/ITEMS/mcl_hoppers/init.lua b/mods/ITEMS/mcl_hoppers/init.lua
index 8ecac414a..7c6a6743d 100644
--- a/mods/ITEMS/mcl_hoppers/init.lua
+++ b/mods/ITEMS/mcl_hoppers/init.lua
@@ -256,6 +256,12 @@ minetest.register_abm({
 		elseif g == 4 then
 			-- Furnace output
 			mcl_util.move_item_container(uppos, "dst", -1, pos)
+
+			-- Also suck in non-fuel items from fuel slot
+			local finv = minetest.get_inventory({type="node", pos=uppos})
+			if finv and not mcl_util.is_fuel(finv:get_stack("fuel", 1)) then
+				mcl_util.move_item_container(uppos, "fuel", -1, pos)
+			end
 		end
 
 		-- Move an item from the hopper into container below