Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/3715
Hi @hongyuhong, thanks for the update.
Please do not squash update commits into the PR. Otherwise it is not
possible to review individual changes. If you squash commits, I have to check
the whole PR again because I cannot see what was changed since my last review.
It would be also good if you could leave a short message when you update a
PR. Github does not send out notifications if the PR branch was updated.
I will review your PR later.
Thanks, Fabian
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