Forgetting releaseLock() permanently breaks the stream. The locked property tells you that a stream is locked, but not why, by whom, or whether the lock is even still usable. Piping internally acquires locks, making streams unusable during pipe operations in ways that aren't obvious.
Овечкин продлил безголевую серию в составе Вашингтона09:40
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В России ответили на имитирующие высадку на Украине учения НАТО18:04
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