schedule: fix the down peer cannot be repaired (#7996)

[ti-chi-bot]

This is an automated cherry-pick of #7996

What problem does this PR solve?

Issue Number: Close #7808.

What is changed and how does it work?

Check List

Tests

• Unit test

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

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• lhy1024

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lhy1024, rleungx

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-08-12 02:43:09.188024134 +0000 UTC m=+149473.891493790: ☑️ agreed by rleungx.
• 2024-09-10 07:24:44.111753322 +0000 UTC m=+341153.852177260: ☑️ agreed by lhy1024.