RelatedFieldWidgetWrapper for proxy model admin page

Using Django The Admin
1

I want to open a popup with an add form associated with a proxy model.

but the code below - creates a widget with a link to the admin form of the model from which my proxy model was created

class FooForm(forms.ModelForm):
    foo_field= forms.ModelMultipleChoiceField(
        queryset=MyProxyModel.objects.all(),
        widget=RelatedFieldWidgetWrapper(
            FilteredSelectMultiple("some txt", is_stacked=True),
            MyProxyModel._meta.get_field('foo_field').remote_field,
            admin.site,
            can_add_related=True
        ),
        required=False,
    )

perhaps someone knows how to get the widget with the correct link - without overriding the methods in the RelatedFieldWidgetWrapper?

UPD:
in case anyone else has this problem:
you can fix this problem like this, but it’s a dirty solution

class FooForm(forms.ModelForm):
    foo_field= forms.ModelMultipleChoiceField(
        queryset=MyProxyModel.objects.all(),
        widget=CustomRelatedFieldWidgetWrapper(
            MyProxyModel,
            FilteredSelectMultiple("some txt", is_stacked=True),
            MyProxyModel._meta.get_field('foo_field').remote_field,
            admin.site,
            can_add_related=True
        ),
        required=False,
    )


class CustomRelatedFieldWidgetWrapper(widgets.RelatedFieldWidgetWrapper):
    def __init__(self, model, *args, **kwargs) -> None:
        self.model = model
        super().__init__(*args, **kwargs)

    def get_related_url(self, info: Tuple[str, str], action: str, *args: Any) -> str:
        rel_opts = self.model._meta
        info = (rel_opts.app_label, rel_opts.model_name)
        return super().get_related_url(info, action, *args)