django.patch

Index: django/db/models/manager.py
===================================================================
--- django/db/models/manager.py	(revision 13444)
+++ django/db/models/manager.py	(working copy)
@@ -48,6 +48,9 @@
         super(Manager, self).__init__()
         self._set_creation_counter()
         self.model = None
+        self.model_attname = None
+        self.related_model_instance = None
+        self.related_model_attname = None
         self._inherited = False
 
     def contribute_to_class(self, model, name):
Index: django/db/models/fields/related.py
===================================================================
--- django/db/models/fields/related.py	(revision 13444)
+++ django/db/models/fields/related.py	(working copy)
@@ -1,3 +1,5 @@
+import copy
+
 from django.db import connection, transaction
 from django.db.backends import util
 from django.db.models import signals, get_model
@@ -250,7 +252,10 @@
 
             # If the related manager indicates that it should be used for
             # related fields, respect that.
-            rel_mgr = self.field.rel.to._default_manager
+            rel_mgr = copy.copy(self.field.rel.to._default_manager)
+            rel_mgr.model_attname = self.field.rel.related_name
+            rel_mgr.related_model_instance = instance
+            rel_mgr.related_model_attname = self.field.name
             if getattr(rel_mgr, 'use_for_related_fields', False):
                 rel_obj = rel_mgr.get(**params)
             else:
@@ -351,8 +356,8 @@
         rel_model = self.related.model
 
         class RelatedManager(superclass):
-            def get_query_set(self):
-                return superclass.get_query_set(self).filter(**(self.core_filters))
+            def get_query_set(self, *args, **kwargs):
+                return superclass.get_query_set(self, *args, **kwargs).filter(**(self.core_filters))
 
             def add(self, *objs):
                 for obj in objs:
@@ -398,7 +403,9 @@
         manager.core_filters = {'%s__%s' % (rel_field.name, attname):
                 getattr(instance, attname)}
         manager.model = self.related.model
-
+        manager.model_attname = rel_field.name
+        manager.related_model_instance = instance
+        manager.related_model_attname = rel_field.rel.related_name
         return manager
 
 def create_many_related_manager(superclass, through=False):
@@ -420,8 +427,8 @@
             if self._pk_val is None:
                 raise ValueError("%r instance needs to have a primary key value before a many-to-many relationship can be used." % instance.__class__.__name__)
 
-        def get_query_set(self):
-            return superclass.get_query_set(self)._next_is_sticky().filter(**(self.core_filters))
+        def get_query_set(self, *args, **kwargs):
+            return superclass.get_query_set(self, *args, **kwargs)._next_is_sticky().filter(**(self.core_filters))
 
         # If the ManyToMany relation has an intermediary model,
         # the add and remove methods do not exist.
@@ -566,7 +573,9 @@
             source_col_name=qn(self.related.field.m2m_reverse_name()),
             target_col_name=qn(self.related.field.m2m_column_name())
         )
-
+        manager.model_attname = self.related.field.name
+        manager.related_model_instance = instance
+        manager.related_model_attname = self.related.get_accessor_name()
         return manager
 
     def __set__(self, instance, value):
@@ -611,7 +620,9 @@
             source_col_name=qn(self.field.m2m_column_name()),
             target_col_name=qn(self.field.m2m_reverse_name())
         )
-
+        manager.model_attname = self.field.related.get_accessor_name()
+        manager.related_model_instance = instance
+        manager.related_model_attname = self.field.attname
         return manager
 
     def __set__(self, instance, value):