Cool, I’ve been meaning to check out ngrok sometime. Looks really useful.
I don’t think there’s a way to filter out the problem since it appears to be an automatic warning due to an uncaught error. I have some ideas on a code fix now, and may submit a PR for it in the near future.
Yes, and if a duplicate does arrive (as appears to be happening), the current code doesn’t do anything about the corresponding database error, resulting in a scary multi-line warning for something that could be safely ignored. A new Lemmy administrator (like me) has no way of knowing this is at best an info-level event, or even just a debug-level event since it has no real effect on anything.