StringComparer.CurrentCultureIgnoreCase.GetHashCode is broken (on Blazor) #70441
Description
Description
StringComparer.CurrentCultureIgnoreCase.GetHashCode is broken on Try .NET used by Microsoft Docs, which is powered by Blazor.
Reproduction Steps
Go to https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.dictionary-2.-ctor?view=net-6.0#code-try-7. Run the code example in the online .NET Editor.
Expected behavior
It should produce the output as indicated at the end of the code example.
In particular,
Dictionary<string, string> openWith =
new Dictionary<string, string>(
StringComparer.CurrentCultureIgnoreCase);
openWith.Add("bmp", "paint.exe");
openWith.Add("BMP", "paint.exe");
should fail.
Actual behavior
The actual output is different from what is indicated at the end of the code example. In particular, openWith.Add("BMP", "paint.exe"); succeeds. Further investigation reveals that StringComparer.CurrentCultureIgnoreCase.Equals("bmp", "BMP") is indeed true, but StringComparer.CurrentCultureIgnoreCase.GetHashCode("bmp") and StringComparer.CurrentCultureIgnoreCase.GetHashCode("BMP") happen to be different.
Regression?
I don't know.
Known Workarounds
None.
Configuration
I am not familiar with Blazor, but System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription says Mono 6.5.0 (explicit/9f49cc85af1). I am using Microsoft Edge 102.0.1245.33 (64bit) on Windows 11 x64.
The (offline, non-Blazor) .net on my computer seems to have no problem with this code example.
Other information
No response