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https://issues.apache.org/jira/browse/FLINK-6398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15988975#comment-15988975
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Aljoscha Krettek commented on FLINK-6398:
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Thanks!
> RowSerializer's duplicate should always return a new instance
> -------------------------------------------------------------
>
> Key: FLINK-6398
> URL: https://issues.apache.org/jira/browse/FLINK-6398
> Project: Flink
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.2.0, 1.2.1
> Reporter: Kurt Young
> Assignee: Kurt Young
> Fix For: 1.3.0, 1.2.2
>
>
> RowSerializer is stateful because of {{nullMask}}, we should always return a
> new instance when duplicating.
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