Generated name is wrong for generic types with many type parameters

[N-Olbert]

Is there an existing issue for this?

• I have searched the existing issues

Product

Hot Chocolate

Describe the bug

When using a type with more than nine generic arguments, the generated GraphQL-name incorrectly contains a '_'.

See example.

Steps to reproduce

    public class Query
    {
        // Generated name (OK): NineGenericsOfInt32AndInt32AndInt32AndInt32AndInt32AndInt32AndInt32AndInt32AndInt32
        public NineGenerics<int, int, int, int, int, int, int, int,int> TestNine => default!;

        // Generated name (WRONG): TenGenerics_OfInt32AndInt32AndInt32AndInt32AndInt32AndInt32AndInt32AndInt32AndInt32AndInt32
        public TenGenerics<int, int, int, int, int, int, int, int,int, int> TestTen => default!;
    }


    public class NineGenerics<T1, T2, T3, T4, T5, T6, T7, T8, T9>
    {
        public int Foo { get; set; }
    }
    public class TenGenerics<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>
    {
        public int Foo { get; set; }
    }

Relevant log output

No response

Additional Context?

I case you wonder why someone would use types with that many arguments: We use them to represent strictly typed data tables (T1 = Type of column 1, T2 = Type of column 2 etc. etc.)

Is suspect the bug to happen somewhere around here

graphql-platform/src/HotChocolate/Core/src/Abstractions/NameFormattingHelpers.cs

Line 193 in f7cec16

name = name.Substring(0, name.Length - _typePostfix.Length);

(anyways, I haven't verified this)

Version

13.4.0