flaky test TestFixControl45132 in planner/core/casetest pkg

[wuhuizuo]

Bug Report

Flaky runs happened 82 times between "2023-09-01" AND "2023-09-09"

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[hawkingrei]

the same as #46663

[wuhuizuo]

still has flaky runs:

latest: https://do.pingcap.net/jenkins/job/pingcap/job/tidb/job/ghpr_unit_test/33129/

/reopen

[ti-chi-bot]

@wuhuizuo: Reopened this issue.

In response to this:

still has flaky runs:

latest: https://do.pingcap.net/jenkins/job/pingcap/job/tidb/job/ghpr_unit_test/33129/

/reopen

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[hawkingrei]

improved by #46963