Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/3503
Thanks for finding and fixing this, important fix!
It would be great if you could add a test for this, to make sure the bug is
not accidentally re-introduced later by someone. You can follow the pattern of
this test:
`flink-streaming-java/src/test/java/org/apache/flink/streaming/api/operators/StateDescriptorPassingTest.java`
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