Format issue with blocks with hyphen in their names

[nimdeveloper]

File.mp4

{% extends 'admin/change_list.html' %}

{% block object-tools-items %}
<a href="javascript:;" class="btn btn-sm btn-outline-gray-600 btn-info py-2 px-4">Get messages</a>
{{ block.super }}
{% endblock %}

[IArnaut2]

BUMP