Classification: reappear / rollback of previously archived 20260722-150155Z-4e16ad2f90bc.
B's content fingerprint (4e16ad2f90bc) was already captured under that version id. This is typically canary or instance-sampling oscillation (A→B→A) of live REST probe shapes — media list mode/moderated, empty vs populated connector catalogs — not a net-new API contract.
Structural movement vs 20260723-110137Z-16b1d9112510 is listed in compare.md. Nothing product-new to announce; do not treat inverse enum/key flips as API launches.