Corrige un crash avec les wielders (Fix by Crabman)

init.lua

@@ -191,6 +191,7 @@ end
 -- tool break sound  + autorefill
 function refill(player, stck_name, index)
 	local inv = player:get_inventory()
+	if inv:get_list("main") then
 		for i,stack in ipairs(inv:get_list("main")) do
 			if stack:get_name() == stck_name then
 				inv:set_stack("main", index, stack)
@@ -201,6 +202,7 @@ function refill(player, stck_name, index)
 			end
 		end
 	end
+end
 
 if auto_refill == true then
 	minetest.register_on_placenode(function(pos, newnode, placer, oldnode)
@@ -288,3 +290,5 @@ minetest.register_on_dignode(function(pos, oldnode, digger)
 		end
 	end
 end)
+
+minetest.log("action", "[invtweak] loaded.")