pd-ctl: fix keyspace group split hang when pd is in pd-mode

[lhy1024]

What problem does this PR solve?

Issue Number: Close #6906

What is changed and how does it work?

Check List

Tests

• Unit test
• Manual test
  

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• JmPotato
• rleungx

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[codecov]

Codecov Report

Merging #6907 (e16b4e6) into master (a605e11) will increase coverage by 0.06%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6907      +/-   ##
==========================================
+ Coverage   74.23%   74.29%   +0.06%     
==========================================
  Files         427      427              
  Lines       45127    45139      +12     
==========================================
+ Hits        33500    33537      +37     
+ Misses       8672     8649      -23     
+ Partials     2955     2953       -2     

Flag	Coverage Δ
unittests	74.29% <100.00%> (+0.06%)	⬆️

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[JmPotato]

/merge

[ti-chi-bot]

@JmPotato: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: b78a5bc

[ti-chi-bot]

@lhy1024: Your PR was out of date, I have automatically updated it for you.

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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[lhy1024]

/merge

[ti-chi-bot]

@lhy1024: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and if the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

If you have any questions about the PR merge process, please refer to pr process.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: e16b4e6