Merge master

2 files changed, 18 insertions, 2 deletions

diff --git a/rest_framework/utils/model_meta.py b/rest_framework/utils/model_meta.py
index b9fb6f67..dd92f8b6 100644
--- a/rest_framework/utils/model_meta.py
+++ b/rest_framework/utils/model_meta.py
@@ -121,12 +121,17 @@ def _get_reverse_relationships(opts):
     """
     Returns an `OrderedDict` of field names to `RelationInfo`.
     """
+    # Note that we have a hack here to handle internal API differences for
+    # this internal API across Django 1.7 -> Django 1.8.
+    # See: https://code.djangoproject.com/ticket/24208
+
     reverse_relations = OrderedDict()
     for relation in opts.get_all_related_objects():
         accessor_name = relation.get_accessor_name()
+        related = getattr(relation, 'related_model', relation.model)
         reverse_relations[accessor_name] = RelationInfo(
             model_field=None,
-            related_model=relation.model,
+            related_model=related,
             to_many=relation.field.rel.multiple,
             has_through_model=False
         )
@@ -134,9 +139,10 @@ def _get_reverse_relationships(opts):
     # Deal with reverse many-to-many relationships.
     for relation in opts.get_all_related_many_to_many_objects():
         accessor_name = relation.get_accessor_name()
+        related = getattr(relation, 'related_model', relation.model)
         reverse_relations[accessor_name] = RelationInfo(
             model_field=None,
-            related_model=relation.model,
+            related_model=related,
             to_many=True,
             has_through_model=(
                 (getattr(relation.field.rel, 'through', None) is not None)
diff --git a/rest_framework/utils/serializer_helpers.py b/rest_framework/utils/serializer_helpers.py
index ab057862..87bb3ac0 100644
--- a/rest_framework/utils/serializer_helpers.py
+++ b/rest_framework/utils/serializer_helpers.py
@@ -19,6 +19,11 @@ class ReturnDict(OrderedDict):
     def __repr__(self):
         return dict.__repr__(self)
 
+    def __reduce__(self):
+        # Pickling these objects will drop the .serializer backlink,
+        # but preserve the raw data.
+        return (dict, (dict(self),))
+
 
 class ReturnList(list):
     """
@@ -33,6 +38,11 @@ class ReturnList(list):
     def __repr__(self):
         return list.__repr__(self)
 
+    def __reduce__(self):
+        # Pickling these objects will drop the .serializer backlink,
+        # but preserve the raw data.
+        return (list, (list(self),))
+
 
 class BoundField(object):
     """