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.
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尹 계엄 직후보다 낮은 국힘 지지율… 중도층서 9%로 역대 최저。关于这个话题，搜狗输入法2026提供了深入分析
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