From c762dcf8f851cef3b221198506328e9b2a3dfea4 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Sat, 6 Feb 2016 03:04:52 +0000
Subject: [PATCH] Fix metas memoization in SA plugin

---
 src/plugins/lua/spamassassin.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/plugins/lua/spamassassin.lua b/src/plugins/lua/spamassassin.lua
index 37689c13f..f2d7a4c4e 100644
--- a/src/plugins/lua/spamassassin.lua
+++ b/src/plugins/lua/spamassassin.lua
@@ -1206,13 +1206,16 @@ local function post_process()
       local meta_cb = function(task)
         local res = 0
         -- XXX: need to memoize result for better performance
-        if not task:get_symbol(k) then
+        local sym = task:get_symbol(k)
+        if not sym then
           if expression then
             res = expression:process(task)
           end
           if res > 0 then
             task:insert_result(k, res)
           end
+        else
+          res = 1
         end
 
         return res
-- 
2.39.5