pydantic-core

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Change Summary

ser_json_bytes transforms values (with base64 encoding) during serialization. But validation doesn't do a complementary base64 decode, so a serialization round-trip into the same model type yields an unequal object.

Related issue number

None for this directly. Other users have mentioned base64 decoding, though: https://github.com/pydantic/pydantic/issues/7000#issuecomment-1669967897

Checklist

• [X] Unit tests for the changes exist
• [ ] Documentation reflects the changes where applicable
• [ ] Pydantic tests pass with this pydantic-core (except for expected changes)
• [X] My PR is ready to review

Selected Reviewer: @davidhewitt