NoReverseMatch error when using overwritten admin page

[felixsc1]

In my Django project, I have overwritten the default admin site, and this breaks the django-admin-index

NoReverseMatch at /admin/mymodel/
Reverse for 'app_list' with keyword arguments '{'app_label': 'admin_index'}' not found. 1 pattern(s) tried: ['admin/(?P<app_label>mymodel)/$']

...
Error during template rendering
In template /home/felix/GitRepos/showcase/venv/lib/python3.10/site-packages/django_admin_index/templates/django_admin_index/includes/app_list.html, error at line 3

Reverse for 'app_list' with keyword arguments '{'app_label': 'admin_index'}' not found. 1 pattern(s) tried: ['admin/(?P<app_label>mymodel)/$']
1	{% load i18n django_admin_index static %}
2	
3	{% dashboard_app_list as dashboard_app_list %}
4	{% display_dropdown_menu request as should_display_dropdown %}
5	
6	{% if dashboard_app_list and should_display_dropdown %}
7	    <div class="djai-dropdown-menu">
8	        {% url 'admin:index' as home %}
9	        <a href="{{ home }}"
10	           class="djai-dropdown-menu__item {% if request.path == home %}djai-dropdown-menu__item--active{% endif %}">
11	            {% trans "Dashboard" %}
12	        </a>
13	        {% for app in dashboard_app_list %}

[sergei-maertens]

I'm curious how that works with regular Django then? As far as I can see, Django's own templates also use this explicit namespace, looking at django/contrib/admin/templates/admin/change_form.html for example:

{% if not is_popup %}
{% block breadcrumbs %}
<div class="breadcrumbs">
<a href="{% url 'admin:index' %}">{% translate 'Home' %}</a>