Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/2070
Hi,
I wrote in the issue that you opened. This is a duplicate of
https://issues.apache.org/jira/browse/FLINK-3977 and the way to fix it is to
make `InternalWindowFunction` properly forward calls to `setOutputType`. If you
want, could you please change your fix to that and open a PR against the older
issue?
---
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 infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
