[GitHub] [flink] pnowojski commented on pull request #6417: [FLINK-9913][runtime] Improve output serialization only once in RecordWriter

[GitHub]

This `checkState` was preventing from some bugs and data loses. Maybe replace 
with:
`checkState(!bufferBuilders[targetChannel].isPresent() || 
bufferBuilders[targetChannel].isFinished());`?


[ Full content available at: https://github.com/apache/flink/pull/6417 ]
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