schema/schema/metadata.json in adiwg-json_schemas-0.7.0 vs schema/schema/metadata.json in adiwg-json_schemas-0.8.0

@@ -9,13 +9,13 @@
     "metadataInfo": {
       "required": ["metadataContact", "metadataCreationDate"],
       "additionalProperties": false,
       "properties": {
         "metadataIdentifier": {
-          "type": "string"
+          "$ref": "citation.json#/definitions/identifier"
         },
-        "parentMetadataIdentifier": {
-          "type": "string"
+        "parentMetadata": {
+          "$ref": "citation.json#/definitions/citationFull"
         },
         "metadataScope": {
           "type": "array",
           "items": {
             "type": "string"
\ No newline at end of file