[v24.3.3] SchemaRegistryError: bundled schema with mismatched dialect

[maver1ck]

Version & Environment

Redpanda version: (use rpk version): v24.3.3
confluent-kafka==2.8.0

What went wrong?

I'm trying to use Redpanda Schema Registry for sending records with JSON Schema.
Schema is generated from Pydantic Classes.
I'm getting error

confluent_kafka.schema_registry.error.SchemaRegistryError: bundled schema with mismatched dialect 'https://json-schema.org/draft/2020-12/schema#' for id key (HTTP status code 422, SR code 422)

What should have happened instead?

Schema should be registered. Confluent Schema Registry can handle it properly.
All the validators say its correct JSON Schema.

How to reproduce the issue?

1. Download attached json file
2. Publish it to redpanda
   Example request: curl -X POST -H "Content-Type: application/vnd.schemaregistry.v1+json" -d @wrong-schema.json http://redpanda.redpanda.svc:8081/subjects/test-json-wrong-value/versions
3. See error:
   {"error_code":422,"message":"bundled schema with mismatched dialect 'https://json-schema.org/draft/2020-12/schema#' for id key"}

Additional information

wrong-schema.json

JIRA Link: CORE-8936

[maver1ck]

I was also able to trigger this bug from Kafka Connect.
This is minimal schema request returning error.

small-wrong-schema.json

[rockwotj]

FYI @aanthony-rp