Fixed Recipe_IsFlagged() - was missing reference to the recipe's "flags" table.

diff --git a/ARL.lua b/ARL.lua
index 5f97662..af2a237 100644
--- a/ARL.lua
+++ b/ARL.lua
@@ -869,7 +869,7 @@ do
 	}

 	local function Recipe_IsFlagged(self, field_name, flag_name)
-		local bitfield = self[field_name]
+		local bitfield = self.flags[field_name]
 		local bitset = BITFIELD_MAP[field_name]
 		local value = bitset[flag_name]