  
  The alternative approach would be to include all fields automatically, or
  remove only some. This fundamental approach is known to be much less secure
  and has led to serious exploits on major websites (e.g. `GitHub
  <https://github.com/blog/1068-public-key-security-vulnerability-and-mitigation>`_).
  
  There are, however, two shortcuts available for cases where you can guarantee
  these security concerns do not apply to you:
  
  1. Set the ``fields`` attribute to the special value ``'__all__'`` to indicate
 
</s> remove    file (e.g. https://www.djangoproject.com/m/pgp/Django-1.5b1.checksum.txt)
 </s> add    file (e.g. https://media.djangoproject.com/pgp/Django-1.5b1.checksum.txt) </s> remove To install Python on your machine go to https://python.org/downloads/. The
 </s> add To install Python on your machine go to https://www.python.org/downloads/. The </s> remove `Jinja2 <http://jinja.pocoo.org/docs/>`_ can offer performance improvements,
particularly when it comes to speed.
 </s> add Jinja2_ can offer performance improvements, particularly when it comes to
speed. </s> remove <https://groups.google.com/d/topic/django-developers/eMu5UQpUdWs/discussion>`_.
 </s> add <https://groups.google.com/g/django-developers/c/eMu5UQpUdWs/discussion>`_.
<https://github.blog/2012-03-04-public-key-security-vulnerability-and-mitigation/>`_).
  
  The alternative approach would be to include all fields automatically, or
  remove only some. This fundamental approach is known to be much less secure
  and has led to serious exploits on major websites (e.g. `GitHub
<https://github.blog/2012-03-04-public-key-security-vulnerability-and-mitigation/>`_).
  
  There are, however, two shortcuts available for cases where you can guarantee
  these security concerns do not apply to you:
  
  1. Set the ``fields`` attribute to the special value ``'__all__'`` to indicate
keep keep keep keep replace keep keep keep keep keep
 Refs #32720 -- Updated various links in docs to avoid redirects and use HTTPS. 
docs/topics/forms/modelforms.txt