Missing permissions after registration

Followed the tutorial using https://debusine.debian.net/ and got

$ debusine create-work-request sbuild << END                                                                       
build_components:
- any
- all
host_architecture: amd64
input:
  source_artifact: 1402904
environment: debian/match:codename=trixie:variant=sbuild
END
---
result: failure
error:
  title: mbehrle@debian.org cannot create work requests in debian/base