[Uri] Uri.IsWellFormedUriString() different behaviour from net461

[nbontempo]

The following unit test for Uri.IsWellFormedUriString("lime://teste_it%C3%A1vel%[email protected]/8dd3a58vgv", UriKind.Absolute)

return true on TargetFramework=net461

return false on TargetFramework=netcoreapp2.1

Is this different behaviour expected?

[rmkerr]

Nothing sticks out to me about that particular URI that should cause Uri.IsWellFormedUriString to return false. It looks like this is probably a duplicate of #21626, since both strings contain percent encoded Unicode.

[karelz]

Duplicate of #21626