SORT: Don't sort Set elements if not needed.

Related to #2094.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/sort.c b/src/sort.c
index f813ff26b..372481969 100644
--- a/src/sort.c
+++ b/src/sort.c
@@ -270,7 +270,9 @@ void sortCommand(redisClient *c) {
      * The other types (list, sorted set) will retain their native order
      * even if no sort order is requested, so they remain stable across
      * scripting and replication. */
-    if ((dontsort && sortval->type == REDIS_SET))
+    if (dontsort &&
+        sortval->type == REDIS_SET &&
+        (storekey || c->flags & REDIS_LUA_CLIENT))
     {
         /* Force ALPHA sorting */
         dontsort = 0;