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David Palma
25558e6b85
- Closes #749. - ExportOperation hardcoded the pushed index descriptor's mediaType to the OCI image index type. RegistryClient.push uses that descriptor's mediaType as the HTTP Content-Type header. When the source index was in Docker manifest.list.v2+json format (the common case for images pulled from Docker Hub and other public registries), the body's embedded mediaType field disagreed with the header, and OCI registries rejected the index PUT with HTTP 400 MANIFEST_INVALID. - Use the source index's mediaType for the pushed descriptor so the header always matches the body. Per-architecture child manifests are unaffected because they were already pushed with their actual mediaType. - Add a parameterized unit test for ExportOperation.export covering both Docker manifest.list