Fixed a test isolation problem that remained after r17042.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17043 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/cache/tests.py

@@ -1233,6 +1233,8 @@ class CacheI18nTest(TestCase):
         translation.activate('es')
         get_cache_data = FetchFromCacheMiddleware().process_request(request)
         self.assertEqual(get_cache_data.content, es_message)
+        # reset the language
+        translation.deactivate()
 
 CacheI18nTest = override_settings(
         CACHE_MIDDLEWARE_KEY_PREFIX='settingsprefix',