Fixed #18125 -- Explained caveat with filters

           Athlete: {{ athlete_list.0.name }}

        {% endif %}

    While the above example works, be aware that most template filters return

    strings, so mathematical comparisons using filters will generally not work

    as you expect. :tfilter:`length` is an exception.

:ttag:`block` and :ttag:`extends`

    Set up `template inheritance`_ (see below), a powerful way

    of cutting down on "boilerplate" in templates.