References to local files or external files outside of the file being parsed fail to parse correctly. The failure results in the properties being parsed to just be completely ignored.

$ref: path.to.my.yaml

Fails with diagnostic error:
The reference string 'path.to.my.yaml' has invalid format.

This appears to be caused by OpenApiV3VersionService.ConvertToOpenApiReference(..) expecting ReferenceType? == null for external references. However, OpenApiV3Deserializer is blindly passing in ReferenceType.Schema.

Links:
OpenApiV3VersionService
OpenApiV3Deserializer

Is this a known issue?