[GitHub] flink issue #4581: [FLINK-7499][io] fix double buffer release in SpillableSu...

[NicoK]

Github user NicoK commented on the issue:

    https://github.com/apache/flink/pull/4581
  
    alright - using fixup commits now for you ;)
    FYI: all `[FLINK-7499]` belong together and can be squashed


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