see:

here it says:

def get_inline_instances(self, request, obj=None): if obj and get_cms_setting("PERMISSION"): can_change_perms = self.has_change_permissions_permission(request, obj=obj) else: can_change_perms = False

which doesn't make much sense for me, it should be:

def get_inline_instances(self, request, obj=None): if obj and get_cms_setting("PERMISSION"): can_change_perms = self.has_change_permission(request, obj=obj) else: can_change_perms = False