Clearing FileField don't work

[mireq]

Cleared ImageField / FileField returns False as value.

This code assigns False to model field. This saves 'False' to database field.

django-parler/parler/models.py

Lines 312 to 315 in 904eacd

	for field, value in model_fields.items():
	try:
	setattr(translation, field, value)
	except TypeError:

Django uses following code to convert False to delete action:

https://github.com/django/django/blob/e03cdf76e78ea992763df4d3e16217d298929301/django/forms/models.py#L84-L85

This issue can be fixed with this code:

for field, value in model_fields.items():
    try:
        model_field = parler_meta.model._meta.get_field(field)
        model_field.save_form_data(translation, value)