Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/3886
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GitHub user tzulitai opened a pull request:
https://github.com/apache/flink/pull/3886
[FLINK-6554] [core] Make CompatibilityResult options more explicitly defined
Previously, if a serializer determines that state migration needs to be
performed but could not provide a fallback