Fixed a bug with replication where SLAVEOF NO ONE caused a slave to close the...

Fixed a bug with replication where SLAVEOF NO ONE caused a slave to close the connection with its slaves

src/networking.c

@@ -526,12 +526,18 @@ void freeClient(redisClient *c) {
          * close the connection with all our slaves if we have any, so
          * when we'll resync with the master the other slaves will sync again
          * with us as well. Note that also when the slave is not connected
-         * to the master it will keep refusing connections by other slaves. */
+         * to the master it will keep refusing connections by other slaves.
+         *
+         * We do this only if server.masterhost != NULL. If it is NULL this
+         * means the user called SLAVEOF NO ONE and we are freeing our
+         * link with the master, so no need to close link with slaves. */
+        if (server.masterhost != NULL) {
             while (listLength(server.slaves)) {
                 ln = listFirst(server.slaves);
                 freeClient((redisClient*)ln->value);
             }
         }
+    }
     /* Release memory */
     zfree(c->argv);
     freeClientMultiState(c);