segfault when set RedisCluster option on none cluster mode #2030

<?php
$redis = new Redis();
$redis->pconnect('foo.bar.baz', '6010', '0.2', 'redis_item', 100, '0.5');
$redis->select(0);
$redis->setOption(RedisCluster::OPT_SLAVE_FAILOVER, RedisCluster::FAILOVER_DISTRIBUTE);

php[3700]: segfault at 12 ip 00007fa278e901ac sp 00007ffc90952e10 error 6 in redis.so[7fa278e45000+8c000]
Code: e9 61 ff ff ff 66 0f 1f 84 00 00 00 00 00 48 8b 7c 24 18 80 7f 08 04 0f 85 79 01 00 00 48 8b 07 48 83 f8 03 0f 87 34 fe ff ff <66> 41 89 44 24 12 e9 31 ff ff ff 66 0f 1f 84 00 00 00 00 00 48 8b