Can't choose form for ModerationAdmin

[awerner25]

Hello,

I want to change the widget for an item in admin section with this code 👍

class ArticleAdminForm(forms.ModelForm):

    class Meta:
        model = Article
        widgets = {
            'image_test': forms.RadioSelect,
        }
        fields = '__all__'

class ArticleAdmin(ModerationAdmin):
    form = ArticleAdminForm
[...]

It's works with admin.ModelAdmin but not with ModerationAdmin.
How I can change the widget ?