From dd1eefa4f3c89177cbe4f2e98dbd8f409ff87bc6 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Sun, 15 May 2011 12:15:54 +0200
Subject: [PATCH] Fixed SINTER[STORE] problem related to the new copy on write
 safe iterator

---
 src/t_set.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/t_set.c b/src/t_set.c
index b221e2e9..be083c8b 100644
--- a/src/t_set.c
+++ b/src/t_set.c
@@ -437,6 +437,7 @@ void sinterGenericCommand(redisClient *c, robj **setkeys, unsigned long setnum,
     si = setTypeInitIterator(sets[0]);
     while((encoding = setTypeNext(si,&eleobj,&intobj)) != -1) {
         for (j = 1; j < setnum; j++) {
+            if (sets[j] == sets[0]) continue;
             if (encoding == REDIS_ENCODING_INTSET) {
                 /* intset with intset is simple... and fast */
                 if (sets[j]->encoding == REDIS_ENCODING_INTSET &&
-- 
2.47.2