release-schema: add publisher field

docs/history/changelog.md

@@ -114,6 +114,7 @@ Per the [normative and non-normative content and changes policy](https://docs.go
   * [#1165](https://github.com/open-contracting/standard/pull/1165) `statusDetails` to `Tender`, `Award` and `Contract`
   * [#1125](https://github.com/open-contracting/standard/pull/1125) `Item.unit.weight`
   * [#1326](https://github.com/open-contracting/standard/pull/1326) `links`
+  * [#1376](https://github.com/open-contracting/standard/pull/1376) `publisher`
   * [#1208](https://github.com/open-contracting/standard/pull/1326) The estimated and maximum values of framework agreeemnts:
     * `tender.maximumValue`. Previously, `tender.value` was used for the maximum value. However, this led to double-counting.
     * `awards.maximumValue`. Previously, `awards.value` was used for the maximum value. However, this led to double-counting.

manage.py

@@ -356,6 +356,29 @@ def remove_metadata_and_extended_keywords(schema):
             remove_metadata_and_extended_keywords(value)
 
 
+def get_dereferenced_release_schema(schema, output=None):
+    """
+    Returns the dereferenced release schema.
+    """
+    # Without a deepcopy, changes to referenced objects are copied across referring objects. However, the deepcopy does
+    # not retain the `__reference__` property.
+    if not output:
+        output = deepcopy(schema)
+
+    if isinstance(schema, list):
+        for index, item in enumerate(schema):
+            get_dereferenced_release_schema(item, output[index])
+    elif isinstance(schema, dict):
+        for key, value in schema.items():
+            get_dereferenced_release_schema(value, output[key])
+        if hasattr(schema, '__reference__'):
+            for prop in schema.__reference__:
+                if prop != '$ref':
+                    output[prop] = schema.__reference__[prop]
+
+    return output
+
+
 def get_versioned_release_schema(schema):
     """
     Returns the versioned release schema.
@@ -450,9 +473,10 @@ def pre_commit():
     Update meta-schema.json, dereferenced-release-schema.json and versioned-release-validation-schema.json.
     """
     release_schema = json_load('release-schema.json')
+    jsonref_release_schema = json_load('release-schema.json', jsonref)
 
     json_dump('meta-schema.json', get_metaschema())
-    json_dump('dereferenced-release-schema.json', json_load('release-schema.json', jsonref))
+    json_dump('dereferenced-release-schema.json', get_dereferenced_release_schema(jsonref_release_schema))
     json_dump('versioned-release-validation-schema.json', get_versioned_release_schema(release_schema))