For me this is code signature so it’s not really a code contribution, here is a real PR with code that have been added to the latest RC
(Due to how Luke rebase Knots, the PR won’t be merged on GitHub but directly added to the tag) here is the relevant commit:

GitHub
update `-rejecttokens` to catch OpenStamps by Retropex · Pull Request #151 · bitcoinknots/bitcoin
Filter based on their own protocol.
count for #64
GitHub
Policy: Update rejecttokens to catch OLGA · bitcoinknots/bitcoin@96ebf21
Co-authored-by: Léo Haf <leohaf@orangepill.ovh>