Token exchange chain verified end-to-end in-process on the live provider
(pk 9): authorize -> ORM-minted code -> form-encoded token exchange with
Basic client auth -> userinfo. Key findings documented:
- Application row + grant_types must exist before authorize can complete
- token endpoint consumes form-encoded bodies only (JSON body => no
grant_type parsed -> unsupported_grant_type); client auth is Basic-only
- PropertyMappingEvaluator.evaluate(*args,**kwargs) forwards kwargs to
BaseEvaluator.evaluate(expression_source), so context kwargs become the
expression source and every evaluation raises a swallowed exception;
userinfo therefore answers sub-only claims for every provider in this
fork. Scope granting filter (provider= M2M descriptor) is always empty.
- Grafana identity = sub hash until the evaluator bug is fixed upstream.