MQTT topics with whitespace cause client disconnects

Proposed change

Option 1: Log and discard the message instead of disconnecting the client Option 2: Escape whitespace (maybe percent-encoding like URL encoding)

Use case

MQTT 3.1 explicitly allows whitespaces in topics. So NATS MQTT Adapter should somehow support these kind of messages.

see: https://github.com/evcc-io/evcc/issues/33818

Version: nats-server 2.14.6

Contribution

I'm happy to provide a PR for option 1 or option 2.

Submission acknowledgment

• I am a human being writing in my own words and not an AI agent. I will not use an AI agent to communicate on my behalf in this issue, either directly or via copy-paste.