A fourth fixture (escape) has a chunk recordKey of k!'()* <e-acute>%41+~. The provider's honest mount answers that one key as the canonical key
after logging the raw URL, so both consumers fetch the bytes and the log holds what each actually sent. The orchestrator asserts the C# and TS
URLs are identical and equal the RFC 3986 escaping. Deleting the reader's !'() * escape now fails test:interop.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>