Corrected the order of operations in the test environment setup to en…

…sure that the original email backend can be restored. Thanks to koenb for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@11718 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/test/utils.py

@@ -43,8 +43,8 @@ def setup_test_environment():
     mail.original_SMTPConnection = mail.SMTPConnection
     mail.SMTPConnection = locmem.EmailBackend
 
-    settings.EMAIL_BACKEND = 'django.core.mail.backends.locmem'
     mail.original_email_backend = settings.EMAIL_BACKEND
+    settings.EMAIL_BACKEND = 'django.core.mail.backends.locmem'
 
     mail.outbox = []