Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/3592
Thanks for the pull request.
This has actually already been fixed in
https://github.com/apache/flink/commit/81a143f6b42cf39d56a36222d14b5db0cc54addb
The commit also retains the old key as a deprecated parameter for backwards
compatibility.
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