Registration when Person entity already exists causes duplicate email entry

[Pidge Pidge]

Traceback (most recent call last):
 File "/var/www/sites/mypidge/django/Apps/Users/views.py", line 186, in RegisterDetails
   newuser, activate = userform.save()

 File "/var/www/sites/mypidge/django/Apps/Users/forms.py", line 110, in save
   user = super(RegisterForm, self).save(*args, **kwargs)

 File "/usr/lib/python2.4/site-packages/django/forms/models.py", line 302, in save
   return save_instance(self, self.instance, self._meta.fields, fail_message, commit)

 File "/usr/lib/python2.4/site-packages/django/forms/models.py", line 59, in save_instance
   instance.save()

IntegrityError: (1062, "Duplicate entry '<email address hidden>' for key 2")

Caused where a Person with the email address already exists then tries to register.

[Pidge Pidge (pidgeon690)]

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