ReactiveRedisConnection ZAddCommand nx and xx does not work as expected

[yeunghl-shoalter]

this.reactiveRedisTemplate.getConnectionFactory()
            .getReactiveConnection()
            .zSetCommands()
            .zAdd(Mono.just(
                  ReactiveZSetCommands.ZAddCommand
                        .tuple(new DefaultTuple(
                              ByteUtils.getBytes(ByteBuffer.wrap(storeSkuId.getBytes())),
                              (double)(LocalDateTime.now().toEpochSecond(ZoneOffset.UTC))))
                        .to(ByteBuffer.wrap(storeId.getBytes()))
                        .xx()));
                        

In the Redis official document, it claims that XX only update elements that already exist. Don't add new elements. However, the above code will still insert a non-exist element.

Also, why it will use flag called upsert to represent whether it is nx or xx? The meaning of upsert does not match with the actual usage of them.

[mp911de]

This is a bug on our side. Thanks for bringing it to our attention.

[mp911de]

That's fixed and backported now.