[smart_holder] Fix handling of `const unique_ptr<T, D> &` (do not disown).#5332

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rwgk merged 15 commits into

pybind:smart_holderfrom

rwgk:unique_ptr_cref_sh

Aug 25, 2024

Commits on Aug 23, 2024

Replace `unique_ptr_cref_roundtrip()` with `pass_unique_ptr_cref()`, `rtrn_unique_ptr_cref()` to make the current behavior obvious.
rwgk
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