If I use CommandFlags.FireAndForget inside a transaction with StackExchange.Redis, does this flag actually do anything? Or does the transaction completion wait until the Fire and Forget command has completed anyhow?

Supplemental – is the fire and forget option purely within StackExchange.Redis, or is it something that’s passed to the Redis server, so the Redis server returns a response before completion?

E.g.:

   var transaction = Database.CreateTransaction();

   transaction.StringSetAsync(key, value);
   transaction.KeyExpireAsync(key, timeToLive, CommandFlags.FireAndForget);

   await transaction.ExecuteAsync(); 
   // will transaction.ExecuteAsync return before the Key Expire command has completed
   // or wait for it to finish?