Description

When opening the Django admin page /admin/auth/user/add/, a TemplateSyntaxError is raised:

Steps to Reproduce

1. Run the development server
2. Go to http://127.0.0.1:8000/admin/auth/user/add/
3. Observe the error

Actual Behavior

A TemplateSyntaxError occurs due to usage of the length_is filter, which is no longer available in Django 5.x.

Environment

• Django version: 5.2.7
• Python version: 3.11.0
• OS: macOS
• Browser: any

Suggested Fix

Remove the |length_is filter from affected templates (e.g. volt/templates/admin/...html)
and replace it with a standard check, for example:

{% if line.fields|length == 1 %}