Github user pnowojski commented on the issue:
https://github.com/apache/flink/pull/4321
I have added unit test for closing. I think it should be triggered/tested
in one of the `ITCases`, but test is fairly easy so it shouldn't hurt us to
have this tested explicitly.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---