Context Navigation

Changes between Initial Version and Version 1 of Ticket #11737

-              initial
+              v1
 the sample code does not work:
+{{{
 >>> from django.db import models
 >>> class Person(models.Model):
 ...     name = models.CharField(max_length=20)
 ...     friends = models.ManyToManyField('self')
+...     idols = models.ManyToManyField('self', symmetrical=False, related_name=
+'stalkers')
+...     idols = models.ManyToManyField('self', symmetrical=False, related_name='stalkers')
 ...     def __unicode__(self):
 ...         return self.name
 …
 IndexError: list index out of range
 >>>
+}}}