[release/10.0] Fix thread safety in SafeEvpPKeyHandle.DuplicateHandle#124613

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github-actions[bot] wants to merge 8 commits intorelease/10.0from

backport/pr-124485-to-release/10.0

Commits on Feb 19, 2026

Initial plan

Copilot
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Fix thread safety in SafeEvpPKeyHandle.DuplicateHandle and add test

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Address review: remove snapshot locals, restructure try/finally without catch

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Simplify fix: capture handle into locals before UpRefEvpPkey, fix test formatting

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Revert to DangerousAddRef/DangerousRelease approach for DuplicateHandle

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Remove redundant keyHandle.Dispose() from test

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Dispose of handle in error path.

vcsjones
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Move safeHandle declaration after DangerousAddRef, remove catch block

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