CheckboxSelectMultiple: attributes doesn't show in options

[matiasgatti]

Following the Django Docs I Have this: (Docs: https://docs.djangoproject.com/en/4.0/ref/forms/fields/#iterating-relationship-choices)

class CheckboxSelectMultipleWithAttrs(CheckboxSelectMultiple):
def create_option(self, name, value, label, selected, index, subindex=None, attrs=None):
option = super().create_option(name, value, label, selected, index, subindex, attrs)
if value:
option['attrs']['data-total'] = value.instance.total
return option

If a render the widget with Django i get the attrs:
(...)
<input type="checkbox" name="ventas" value="95" id="id_ventas_0" data-total="5220">
<input type="checkbox" name="ventas" value="94" id="id_ventas_1" data-total="6000">
(...)

BUT If I render with django-bootstrap5 I dont get the attrs. (data-total) on the checkbox.