Hi all,

I noticed that the KafkaSourceReader did not have a pointer to the
KafkaSubscriber, so I was wondering if this could be a bug:

1. User has a flink job with topic set A and takes savepoint
2. User modifies flink job to read from topic set B; however, splits are
still read from topic set A (since there’s no logic to filter/remove
splits).

To clarify, I haven’t tested this scenario out myself, but just through
reading the code, there was no logic to filter/remove splits. Just to add
and complete.

Best,
Mason

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