Create copies of mutable properties on X509Certificate2

[vcsjones]

Export(X509ContentType.Cert) on macOS was returning the byte array from a field in the PAL, which allowed callers to mutate the underlying certificate.

IssuerName and SubjectName return mutable data on RawData, so the get there returns a copy.

Fixes #38864.

[ghost]

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[vcsjones]

Not sure what happened to the build, seems wedged? Should probably try (Libraries Test Build Windows_NT x64 Debug) again.

[bartonjs]

Sadly, close/reopen only reran the already completed legs.

You can probably do it easier than I can...

git fetch --all
git merge dotnet/master
git push origin HEAD

What's that? New commit? Let's rerun all the jobs.

[vcsjones]

You can probably do it easier than I can

Yeah I was just hoping to avoid running the other 99 checks again and whatever carbon footprint comes along with it.

Since y'all squash merge I just threw on an empty commit.

[bartonjs]

Yeah I was just hoping to avoid running the other 99 checks again and whatever carbon footprint comes along with it.

Praiseworthy 😄. If there's an abort button somewhere in AzDO, I haven't been able to find it or can't find it because I'm not empowered to use it. Probably PEBKAC/RTFM, but is what it is 🤷.

[vcsjones]

Seems like AzDO had a bad day today. I'll try again tomorrow.

[vcsjones]

macOS failure is #38998. WASM failure was System.Linq.Parallel.Tests.ToLookupTests.ToLookup_AggregateException, I'd put money on that not being related to this PR.