Redis filtering issue with unexpected results and need help on response handling. Any suggestions? Hi All,got a question in regards to Redis.We encounter issues, that filtering isn't working as expected. We use Redis as a whitelist, meaning that we extract a field from the raw log and using the EXISTS command to check if the key (build as a combination of strings) exists in Redis. If it does not exists in Redis the return value is `'0'` and we will drop the event.What we discovered is, that events that should be dropped are available at the destination.My questions are:What is / Is there a return value from Redis in case Redis was not able to process the query (EXISTS command)? Proabably not `'0'` , but if there is a response I somehow need to catch it.That was the only thing that came to my mind could cause the issue.Do you have some other ideas?Cheers,Mario