def get_fieldsets(self, request, obj=None):
        """
        Insert FEINCMS_CONTENT_FIELDSET it not present.
        Is it reasonable to assume this should always be included?
        """

        fieldsets = copy.deepcopy(super().get_fieldsets(request, obj))
        names = [f[0] for f in fieldsets]

        if FEINCMS_CONTENT_FIELDSET_NAME not in names:
            fieldsets.append(FEINCMS_CONTENT_FIELDSET)

        return fieldsets

        Insert FEINCMS_CONTENT_FIELDSET it not present.
        Is it reasonable to assume this should always be included?
        
feincms/admin/item_editor.py