Container Does Not Pause for Missing Acks After a Rebalance

[garyrussell]

Discussed in #2575

Reproducer provided in the discussion exhibits the behavior; the container should again pause after the second set of 500 records are received.

[AminArria]

Tested with 3.0.3-SNAPSHOT and everything is working as expected 😄

Thank you so much for the help with this and the quick turn around!

[garyrussell]

Thanks for testing; the 3.0.3 release is scheduled for next Tuesday (and 2.9.6).