c# 14 cant extend multiple types in the same class

[SimonCropp]

wondering if this is a bug or by design?

this code

static class SHAPolyfill
{
#if !NET7_0_OR_GREATER
    extension(SHA256)
    {
        public static byte[] HashData(Stream source)
        {
            using var hasher = SHA256.Create();
            return hasher.ComputeHash(source);
        }
    }
    extension(SHA512)
    {
        public static byte[] HashData(Stream source)
        {
            using var hasher = SHA512.Create();
            return hasher.ComputeHash(source);
        }
    }
#endif
}

produces

Error CS0111 : Type 'SHAPolyfill' already defines a member called 'HashData' with the same parameter types

SDK: 10.0.100-preview.7.25320.118

[RikkiGibson]

The problem here is that the methods are callable in the form SHAPolyfill.HashData(stream), so, the two extensions are ambiguous on that basis.

[SimonCropp]

i think u r correct. although it is disappointing to have to place similar extensions in different classes