br: avoid wrong warning (#56492)

[ti-chi-bot]

This is an automated cherry-pick of #56492

What problem does this PR solve?

Issue Number: close #55902

Problem Summary:
the wrong warning log is print after backup done.

What changed and how does it work?

don't print the wrong warning log.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release-7.1@c5dc4ba). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.1     #57033   +/-   ##
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  Coverage               ?   73.4825%           
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  Files                  ?       1211           
  Lines                  ?     380647           
  Branches               ?          0           
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  Hits                   ?     279709           
  Misses                 ?      83099           
  Partials               ?      17839           

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: BornChanger, Leavrth

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Needs approval from an approver in each of these files:

• OWNERS [Leavrth]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-11-05 06:36:48.464697181 +0000 UTC m=+936521.303852715: ☑️ agreed by Leavrth.
• 2024-11-05 07:56:09.883918927 +0000 UTC m=+941282.723074474: ☑️ agreed by BornChanger.