jim
f541ec4260
IsAllRateLimited() short-circuited true for any pool with 0 or 1 keys, with minRetrySeconds left at 0 regardless of whether that key was actually rate-limited. SleepUntilAnyAvailable() checks "minRetry <= 0" to decide whether to skip sleeping, so with exactly one key it always skipped the wait and let callers hammer the API again immediately after a 429, even mid-cooldown. The per-key loop already computes this correctly for any key count; the special case only needs to cover the true no-keys edge case, where there's nothing to wait on.