Merge pull request #2572 from mtrmac/unambiguous-typo

Fix an incorrect expected MIME type when validating manifests

manifest/oci.go

@@ -60,7 +60,7 @@ func OCI1FromManifest(manifestBlob []byte) (*OCI1, error) {
 	if err := json.Unmarshal(manifestBlob, &oci1); err != nil {
 		return nil, err
 	}
-	if err := manifest.ValidateUnambiguousManifestFormat(manifestBlob, imgspecv1.MediaTypeImageIndex,
+	if err := manifest.ValidateUnambiguousManifestFormat(manifestBlob, imgspecv1.MediaTypeImageManifest,
 		manifest.AllowedFieldConfig|manifest.AllowedFieldLayers); err != nil {
 		return nil, err
 	}