Possible issue in Message.cs

[Matthew Wills]

I am very new to this codebase, but this code seems odd to me in Message.cs:

        /// <summary>
        /// Try to show the payload as decoded to UTF-8.
        /// </summary>
        /// <returns>The decoded payload as string.</returns>
        public override string ToString()
        {
            var sb = new StringBuilder();
            sb.Append("Magic: ");
            sb.Append(this.Magic);
            if (this.Magic == 1)
            {
                sb.Append(", Attributes: ");
                sb.Append(this.Attributes);
            }

            sb.Append(", topic: ");
            try
            {
                sb.Append(Encoding.UTF8.GetString(this.Payload));
            }
            catch (Exception)
            {
                sb.Append("n/a");
            }

            return sb.ToString();
        }

Specifically the code that inserts topic: {payload} . (i.e. the label implies it is the topic, but in fact it shows the payload not the topic).