[ShussMiao]

Issue number: closes #8596

Summary

Changes

SecretsProvider._get_multiple took the Filters value straight out of sdk_options and appended the generated name filter onto that same list object, so a caller-owned list was mutated in place. It now copies the list before appending.

Adds a regression test that reuses one caller-owned Filters list across two get_multiple calls and asserts, via Stubber expected parameters, that each request carries exactly the caller's filter plus the current name filter — and that the caller's list is unchanged afterwards.

User experience

Callers that pass a shared or module-level Filters list (as the docs example shows) no longer accumulate a stale name filter on every call, so a second request can no longer return secrets that were not asked for.

Testing

tests/functional/parameters/ — 184 passed. The new test fails on the previous code with the second request carrying three filters, and passes after the copy. ruff check and ruff format --check are clean on both files.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[leandrodamascena]

Thanks @ShussMiao, the fix is right, but #8604 by @wanjinhao1 had already landed this same change for #8596 a few days before you opened this, so I'm closing it as a duplicate. Your other PR, #8691, is merged and you're credited in 3.39.0. There are more good first issue bugs open if you want another one, and please comment on the issue first so we can assign it to you and avoid two people working on the same thing.