Condition is designed to check the current value when a consumer wakes up. That's fine when state only moves forward, but it falls apart when transitions are fast. When the setter changes state, it calls notify_all(), which schedules wakeups for every waiting consumer. But in a single-threaded event loop, no consumer actually runs until the current coroutine yields. If the value changes again before that happens, consumers wake up and re-evaluate their predicate against the current value, not the value that triggered the notification. The predicate fails and the consumer goes back to sleep, potentially forever.
Автолюбителей предупредили о штрафе за неправильную тонировку14:52
系统在 2 月 23 日凌晨兑现候补订单后，按其选择的方式向 3 名乘车人发送了通知。由于候补车次（G1654）与已购车次（G1656）乘车时段并不重叠，系统不会判定为行程冲突，因此不存在「自动作废」。，更多细节参见电影
Иран установил личности виновных в ударе по школе для девочек в Минабе14:56
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Let’s be expressive!
（五）救助方在救助船舶、其他财产和人命方面的技能和努力；，详情可参考爱思助手