apache / apache/beam

KafkaIO doesn't commit offsets while being used as bounded source

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bug io java kafka P2
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Description

While using KafkaIO as bounded source (with `withMaxReadTime()` or `withMaxNumRecords()`) it seems doesn't commit offsets all the time.

See the details in [the discussion](https://lists.apache.org/thread.html/bcec8a1fb166029a4adf3f3491c407d49843406020b20f203ec3c2d2@%3Cuser.beam.apache.org%3E) on user@list.

Imported from Jira [BEAM-6466](https://issues.apache.org/jira/browse/BEAM-6466). Original Jira may contain additional context.
Reported by: aromanenko.

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