https://docs.djangoproject.com/en/dev/topics/forms/formsets/#formset-rendering
For Django 4.0, you have the following documentation. In each paragraph, the phrase "as per the forms" needs to be changed to "as per the forms'". (the possessive case)
BaseFormSet.template_name
New in Django 4.0.
The name of the template used when calling str or render(). This template renders the formsets management forms and then each form in the formset as per the template defined by the forms template_name. This is a proxy of as_table by default.
BaseFormSet.template_name_p
New in Django 4.0.
The name of the template used when calling as_p(). By default this is 'django/forms/formsets/p.html'. This template renders the formsets management forms and then each form in the formset as per the forms as_p() method.
BaseFormSet.template_name_table
New in Django 4.0.
The name of the template used when calling as_table(). By default this is 'django/forms/formsets/table.html'. This template renders the formsets management forms and then each form in the formset as per the forms as_table() method.
BaseFormSet.template_name_ul
New in Django 4.0.
The name of the template used when calling as_ul(). By default this is 'django/forms/formsets/ul.html'. This template renders the formsets management forms and then each form in the formset as per the forms as_ul() method.
The docs say to just submit a PR if it's a simple fix. As this is my first Django contribution I figured I should walk through the ticket 'claiming' step as well.
PR: https://github.com/django/django/pull/14879