[ISSUE #8835]When ck is in the buffer, incomplete ack will lead to message duplication.

[GenerousMan]

Which Issue(s) This PR Fixes

Fixes #8835

Brief Description

How Did You Test This Change?

[GenerousMan]

The reason for this issue is that the Ack was put to store from the buffer without writing the brokerName. This variable is essential during the merge process.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 47.39%. Comparing base (5496807) to head (f7ea7ef).
Report is 49 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #8836      +/-   ##
=============================================
- Coverage      47.42%   47.39%   -0.04%     
- Complexity     11514    11599      +85     
=============================================
  Files           1277     1283       +6     
  Lines          89438    90010     +572     
  Branches       11502    11584      +82     
=============================================
+ Hits           42416    42657     +241     
- Misses         41812    42111     +299     
- Partials        5210     5242      +32     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[fuyou001]

LGTM