leizhiyuan commented on issue #1412:
URL: 
https://github.com/apache/rocketmq-clients/issues/1412#issuecomment-6310886258

   Update: item 16 (ack after `change_invisible_duration` silently ignored) now 
has #1430 / #1431.
   
   - `SimpleConsumer::change_invisible_duration` writes the new receipt handle 
back into the `MessageView`, as Java 
`SimpleConsumerImpl#changeInvisibleDuration0` does. A later `ack` or change of 
the same view then takes effect. The public API is unchanged.
   - End-to-end on the same server: on `master`, "change once / change twice, 
then ack the same view" returned `Ok` and the message was redelivered after ~40 
s. With the PR it is not redelivered.
   - It conflicts with #1427 in `simple_consumer.rs` (same function, plus tests 
appended at the same place). The resolution is described in the conflict table 
(ยง) and was verified on a temporary merge. It merges cleanly with every other 
open Rust PR. Since it changes a `pub(crate)` field type of `MessageView`, I 
also built and tested the merges with the PRs that use `MessageView`.
   
   The table and the conflict matrix above are updated.
   


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