id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
17876	get_klass_info should handle proxy models and with select_related	milosu	Karen Tracey	"If I do not apply attached patch to django/db/models/query.py, the following test case fails:

{{{
======================================================================
ERROR: test_defer (modeltests.defer.tests.DeferTests)
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Traceback (most recent call last):
  File ""C:\Python26\lib\site-packages\django_versions\Django-1.4c1\tests\modeltests\defer\tests.py"", line 149, in test_defer
    for obj in ChildProxy.objects.all().select_related().only('id'):
  File ""C:\Python26\lib\site-packages\django_versions\Django-1.4c1\django\db\models\query.py"", line 118, in _result_iter
    self._fill_cache()
  File ""C:\Python26\lib\site-packages\django_versions\Django-1.4c1\django\db\models\query.py"", line 875, in _fill_cache
    self._result_cache.append(self._iter.next())
  File ""C:\Python26\lib\site-packages\django_versions\Django-1.4c1\django\db\models\query.py"", line 290, in iterator
    requested=requested, only_load=only_load)
  File ""C:\Python26\lib\site-packages\django_versions\Django-1.4c1\django\db\models\query.py"", line 1276, in get_klass_info
    load_fields.update(fields)
AttributeError: 'NoneType' object has no attribute 'update'

----------------------------------------------------------------------
Ran 170 tests in 0.700s

FAILED (errors=1)
}}}"	Bug	closed	Database layer (models, ORM)	1.4-beta-1	Release blocker	fixed	proxy select_related get_klass_info	charette.s@…	Accepted	1	0	0	0	0	0