[1.3.X] Altered the behavior of URLField to avoid a potential DOS vector, and to avoid potential leakage of local filesystem data. A security announcement will be made shortly.

Backport of r16760 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.3.X@16763 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/validation/models.py

@@ -15,6 +15,7 @@ class ModelToValidate(models.Model):
     parent = models.ForeignKey('self', blank=True, null=True, limit_choices_to={'number': 10})
     email = models.EmailField(blank=True)
     url = models.URLField(blank=True)
+    url_verify = models.URLField(blank=True, verify_exists=True)
     f_with_custom_validator = models.IntegerField(blank=True, null=True, validators=[validate_answer_to_universe])
 
     def clean(self):