preserve comparer of the original dictionary

[tomhreb]

Signed-off-by: Tomas Hrebicek tomhreb@users.noreply.github.com

Description

Fixes issue #934

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[halspang]

@tomhreb - Thanks for opening this! I'm a little bit worried about removing case sensitivity though. What if people are depending on that?

I think this may be more what you're looking for #887?

[tomhreb]

@halspang No, I don't think #887 is related.

Without the case sensitivity, this functionality does not work. The original dictionary in the .net core library has this case sensitivity. I still regard this as a bugfix.

[tomhreb]

Hi @halspang, any idea if this will be approved?

Check that the base class in .net SDK really has StringComparer.OrdinalIgnoreCase.

https://github.com/dotnet/dotnet/blob/b8bc661a7429baa89070f3bee636b7fbc1309489/src/runtime/src/libraries/Microsoft.Extensions.Configuration/src/ConfigurationProvider.cs