Review on PR #3503 caught the last provenance edge case: some servers can
explicitly advertise an origin-only resource equal to the authorization-server
origin. That value is still authoritative provider metadata and must be sent;
only OMP-synthesized fallback resources should be stripped.
- `filterResourceIndicator` now strips same-origin values only when `stripSameOriginResource` is set. Provider-advertised `oauth.resource` and authorization-URL `?resource=` values preserve both origin-only and path-scoped forms.
- Updated grant tests to preserve advertised origin resources, trailing-slash origin resources, and URL-embedded origin resources while still stripping fallback origin/path resources for Plane.
- Updated refresh tests to preserve advertised origin resources and strip only fallback origin/path resources.
- Updated changelog wording to describe fallback-only stripping.
Fixes#3502
roboomp
132531ee47