Picking "Alap" revokes the consent, and a batch still in flight is then answered by the server with
the same 409 a real expiry gets. The 409 arm only checked that the consent session had not changed,
not that this tab was still streaming — so the user's own log gained a "diagnostics level lapsed"
line for a level they had just turned off themselves, plus a pointless `me` refetch. The same guard
also stops a lapse this tab has already announced being announced a second time.
Measured in Chrome by holding the POST at the network layer, switching to Alap and only then
answering 409: the line appears without the guard and not with it.
Three tests that named the session counter never reached it — they settled the refusal while the
stream was already stopped, where `unsubscribe` does the work, so the counter could be deleted from
both arms with the suite green. The refusal now settles after the re-raise, which is the ordering it
exists for. Same for the queue trim on the 429 path: the old test unshifted a batch into an empty
queue, so the trim was a no-op and only the subscribe path was ever measured.
peter
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