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[release-0.9] ⚠️ Client: Ensure no stale data remains in target object #1661

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k8s-infra-cherrypick-robot

This is an automated cherry-pick of #1640

/assign spiffxp

Fixes kubernetes-sigs#1639

The json deserializer of the stdlib and the one from Kube which aims to
be compatible won't zero out all field types in the object it
deserializes into, for example it lets slices be if the json does not
contain that field. This means that if a non-empty variable is used for
any api call with the client, the resulting content might be a mixture
of previous content and what is on the server.

This PR adds a wrapper around the deserializer that will first zero the
target object.
@k8s-ci-robot k8s-ci-robot added this to the v0.9.x milestone Sep 10, 2021
@k8s-ci-robot k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. labels Sep 10, 2021
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Hi @k8s-infra-cherrypick-robot. Thanks for your PR.

I'm waiting for a kubernetes-sigs 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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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: k8s-infra-cherrypick-robot
To complete the pull request process, please assign alvaroaleman after the PR has been reviewed.
You can assign the PR to them by writing /assign @alvaroaleman in a comment when ready.

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@k8s-ci-robot k8s-ci-robot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Sep 10, 2021
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spiffxp commented Sep 10, 2021

/close
Was verifying that cherrypicker is functional, ref: kubernetes/test-infra#23469

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@spiffxp: Closed this PR.

In response to this:

/close
Was verifying that cherrypicker is functional, ref: kubernetes/test-infra#23469

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 kubernetes/test-infra repository.

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