Helm 3 OCI Support Push Fails due to invalid MIME type

FEATURE_GENERAL_OCI_SUPPORT: true
FEATURE_EXPERIMENTAL_HELM_OCI_SUPPORT: true

gunicorn-registry stdout | 2020-08-25 16:56:15,351 [317] [ERROR] [endpoints.v2.manifest] failed to parse manifest when writing by tagname
gunicorn-registry stdout | Traceback (most recent call last):
gunicorn-registry stdout |   File "/quay-registry/image/oci/manifest.py", line 141, in __init__
gunicorn-registry stdout |     validate_schema(self._parsed, OCIManifest.METASCHEMA)
gunicorn-registry stdout |   File "/usr/local/lib/python3.6/site-packages/jsonschema/validators.py", line 934, in validate
gunicorn-registry stdout |     raise error
gunicorn-registry stdout | jsonschema.exceptions.ValidationError: 'application/tar+gzip' is not one of ['application/vnd.oci.image.layer.v1.tar', 'application/vnd.oci.image.layer.v1.tar+gzip', 'application/vnd.oci.image.layer.nondistributable.v1.tar', 'application/vnd.oci.image.layer.nondistributable.v1.tar+gzip']
gunicorn-registry stdout | Failed validating 'enum' in schema['properties']['layers']['items']['properties']['mediaType']:
gunicorn-registry stdout |     {'description': 'The MIME type of the referenced manifest',
gunicorn-registry stdout |      'enum': ['application/vnd.oci.image.layer.v1.tar',
gunicorn-registry stdout |               'application/vnd.oci.image.layer.v1.tar+gzip',
gunicorn-registry stdout |               'application/vnd.oci.image.layer.nondistributable.v1.tar',
gunicorn-registry stdout |               'application/vnd.oci.image.layer.nondistributable.v1.tar+gzip'],
gunicorn-registry stdout |      'type': 'string'}
gunicorn-registry stdout | On instance['layers'][0]['mediaType']:
gunicorn-registry stdout |     'application/tar+gzip'
gunicorn-registry stdout | During handling of the above exception, another exception occurred:
gunicorn-registry stdout | Traceback (most recent call last):
gunicorn-registry stdout |   File "/quay-registry/endpoints/v2/manifest.py", line 275, in _parse_manifest
gunicorn-registry stdout |     return parse_manifest_from_bytes(Bytes.for_string_or_unicode(request.data), content_type)
gunicorn-registry stdout |   File "/quay-registry/image/shared/schemas.py", line 38, in parse_manifest_from_bytes
gunicorn-registry stdout |     return OCIManifest(manifest_bytes)
gunicorn-registry stdout |   File "/quay-registry/image/oci/manifest.py", line 143, in __init__
gunicorn-registry stdout |     raise MalformedOCIManifest("manifest data does not match schema: %s" % ve)
gunicorn-registry stdout | image.oci.manifest.MalformedOCIManifest: manifest data does not match schema: 'application/tar+gzip' is not one of ['application/vnd.oci.image.layer.v1.tar', 'application/vnd.oci.image.layer.v1.tar+gzip', 'application/vnd.oci.image.layer.nondistributable.v1.tar', 'application/vnd.oci.image.layer.nondistributable.v1.tar+gzip']
gunicorn-registry stdout | Failed validating 'enum' in schema['properties']['layers']['items']['properties']['mediaType']:
gunicorn-registry stdout |     {'description': 'The MIME type of the referenced manifest',
gunicorn-registry stdout |      'enum': ['application/vnd.oci.image.layer.v1.tar',
gunicorn-registry stdout |               'application/vnd.oci.image.layer.v1.tar+gzip',
gunicorn-registry stdout |               'application/vnd.oci.image.layer.nondistributable.v1.tar',
gunicorn-registry stdout |               'application/vnd.oci.image.layer.nondistributable.v1.tar+gzip'],
gunicorn-registry stdout |      'type': 'string'}
gunicorn-registry stdout | On instance['layers'][0]['mediaType']:
gunicorn-registry stdout |     'application/tar+gzip'