Fixed #26002 -- Explained ModelAdmin.get_search_results() example.

    implemented by your search method may introduce duplicates into the results,

    and return ``True`` in the second element of the return value.

    For example, to enable search by integer field, you could use::

    For example, to search by ``name`` and ``age``, you could use::

        class PersonAdmin(admin.ModelAdmin):

            list_display = ('name', 'age')

                    queryset |= self.model.objects.filter(age=search_term_as_int)

                return queryset, use_distinct

    This implementation is more efficient than ``search_fields =

    ('name', '=age')`` which results in a string comparison for the numeric

    field, for example ``... OR UPPER("polls_choice"."votes"::text) = UPPER('4')``

    on PostgreSQL.

.. method:: ModelAdmin.save_related(request, form, formsets, change)

    The ``save_related`` method is given the ``HttpRequest``, the parent