[3.5] manual: Fix risk of a partial write txn being applied

[shyamjvs]

Manually backported #18749 given conflicting changes.

/assign @ahrtr

[k8s-ci-robot]

Hi @shyamjvs. Thanks for your PR.

I'm waiting for a etcd-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[ahrtr]

/ok-to-test

Thanks @shyamjvs

[ahrtr]

LGTM

The workflows on arm64 are blocked because we don't have arm64 runners. Once the workflows are migrated to prow, we will remove arm64 workflow on github.

[ivanvc]

/test all

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahrtr, serathius, shyamjvs

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