issue in defer/stream label uniqueness validation

[jbellenger]

Product

Hot Chocolate

Version

16.0.2

Link to minimal reproduction

https://jbellenger.github.io/graphql-conformance/impl/hot-chocolate/failures/03573f34%2F2e32a08b%2F08277c86

Steps to reproduce

After updating hot-chocolate in graphql-conformance, I saw there were some test failures related to defer/stream label validation.
The link above is the failed test, but the actual minimal test case is this test case, which can be added to DeferAndStreamDirectiveLabelsAreUniqueTests.cs

[Fact]
public void Label_Should_Be_Valid_When_Defer_Is_In_Reused_Fragment()
{
    ExpectValid(
        """
        query {
          ...Repeated
          ...Repeated
        }

        fragment Repeated on Query {
          ... @defer(label: "details") {
            __typename
          }
        }
        """);
}

What is expected?

This test case raises no validation error in graphql-js-17.

What is actually happening?

HotChocolate rejects this with a validation error:

If a label is passed, it must be unique within all other @defer and @stream directives in the document.

Relevant log output

Additional context

No response

[glen-84]

Thanks for reporting this. 🙂