{% extends "django_tomselect/tomselect.html" %}
{% comment %}
  An option that carries an "optgroup" key is listed under a heading of that name.
  django-tomselect draws group headings and has no setting that names an option's group.
{% endcomment %}
{% block tomselect_render %}
    optgroupField: 'optgroup',
    optionGroupRegister: function(value) {
        if (!value) {
            return null;
        }
        return {value: value, label: value};
    },
    {{ block.super }}
{% endblock tomselect_render %}