Blazor WASM does not handle NullabilityInfoContext correctly

[juergenr]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

The NullabilityInfoContext behaves different in Blazor and a Console application.

The results of the NullabilityInfoContext are wrong in Blazor and correct in a Console applcation for Property-Types like:
public string[]? StringB { get; set; }
public string?[] StringC { get; set; }
public object[]? ObjectB { get; set; }
public object?[] ObjectC { get; set; }

Expected Behavior

Same results in Blazor and a Console application.

Steps To Reproduce

@code {
    public class Test {
        public string[]   StringA { get; set; } = new string[]  { "string1", "string2" };
        public string[]?  StringB { get; set; } = new string[]  { "string1", "string2" };
        public string?[]  StringC { get; set; } = new string?[] { "string1", "string2" };
        public string?[]? StringD { get; set; } = new string?[] { "string1", "string2" };

        public double[]   DoubleA { get; set; } = new double[]  { 1, 2 };
        public double[]?  DoubleB { get; set; } = new double[]  { 1, 2 };
        public double?[]  DoubleC { get; set; } = new double?[] { 1, 2 };
        public double?[]? DoubleD { get; set; } = new double?[] { 1, 2 };

        public object[]   ObjectA { get; set; } = new object[]  { 1, 2 };
        public object[]?  ObjectB { get; set; } = new object[]  { 1, 2 };
        public object?[]  ObjectC { get; set; } = new object?[] { 1, 2 };
        public object?[]? ObjectD { get; set; } = new object?[] { 1, 2 };
    }
    Test test = new Test();

    protected override Task OnInitializedAsync() {
        NullabilityInfoContext nullabilityInfoContext = new();

        PropertyInfo[] piArray = typeof(Test).GetProperties();
        foreach (PropertyInfo pi in piArray) {
            NullabilityInfo ni = nullabilityInfoContext.Create(pi);
            Console.WriteLine($"Name: {pi.Name}  ArrayState: {ni.ReadState}  ElementState: {ni.ElementType.ReadState}");
        }        
        return base.OnInitializedAsync();
    }
}

Output from Blazor is:

Name: StringA  ArrayState: NotNull  ElementState: NotNull   
Name: StringB  ArrayState: NotNull  ElementState: NotNull     <= Error 
Name: StringC  ArrayState: NotNull  ElementState: NotNull     <= Error
Name: StringD  ArrayState: Nullable  ElementState: Nullable
Name: DoubleA  ArrayState: NotNull  ElementState: NotNull
Name: DoubleB  ArrayState: Nullable  ElementState: NotNull
Name: DoubleC  ArrayState: NotNull  ElementState: Nullable
Name: DoubleD  ArrayState: Nullable  ElementState: Nullable
Name: ObjectA  ArrayState: NotNull  ElementState: NotNull
Name: ObjectB  ArrayState: NotNull  ElementState: NotNull    <= Error
Name: ObjectC  ArrayState: NotNull  ElementState: NotNull    <= Error
Name: ObjectD  ArrayState: Nullable  ElementState: Nullable

Output from same code executed in a Console Application:

Name: StringA  ArrayState: NotNull  ElementState: NotNull   
Name: StringB  ArrayState: Nullable  ElementState: NotNull     <= Correct
Name: StringC  ArrayState: NotNull  ElementState: Nullable     <= Correct
Name: StringD  ArrayState: Nullable  ElementState: Nullable
Name: DoubleA  ArrayState: NotNull  ElementState: NotNull
Name: DoubleB  ArrayState: Nullable  ElementState: NotNull
Name: DoubleC  ArrayState: NotNull  ElementState: Nullable
Name: DoubleD  ArrayState: Nullable  ElementState: Nullable
Name: ObjectA  ArrayState: NotNull  ElementState: NotNull
Name: ObjectB  ArrayState: Nullable  ElementState: NotNull    <= Correct
Name: ObjectC  ArrayState: NotNull  ElementState: Nullable    <= Correct
Name: ObjectD  ArrayState: Nullable  ElementState: Nullable

Exceptions (if any)

No response

.NET Version

6.0.400-preview.22301.10

Anything else?

No response