Overloaded C++ static methods and Python

I've encountered an interesting problem with the SWIG generated Python 
interface of overloaded C++ methods. This is my test case:

> %module overload_test
> 
> class class_A {
> public:
>     int method_1();
>     int method_1(int x);
>     int method_2();
>     static int method_2(int x);
> };

The Python interface for method_1 is as you'd expect, but method_2() 
becomes a static method requiring a class_A object to be passed as a 
parameter. I'm running swig as follows:

swig -c++ -python -builtin -fastdispatch overload_test.i

The relevant parts of the wrapper file are

>   (void)self;
>   if (!(argc = SWIG_Python_UnpackTuple(args, "class_A_method_1", 0, 2, argv+1))) SWIG_fail;
>   argv[0] = self;
>   if (argc == 1) {
>     PyObject *retobj = _wrap_class_A_method_1__SWIG_0(self, argc, argv);
>     if (!SWIG_Python_TypeErrorOccurred(retobj)) return retobj;
>     SWIG_fail;
>   }
>   if (argc == 2) {
>     PyObject *retobj = _wrap_class_A_method_1__SWIG_1(self, argc, argv);
>     if (!SWIG_Python_TypeErrorOccurred(retobj)) return retobj;
>     SWIG_fail;
>   }

and

>   (void)self;
>   if (!(argc = SWIG_Python_UnpackTuple(args, "class_A_method_2", 0, 1, argv))) SWIG_fail;
>   --argc;
>   if (argc == 1) {
>     int _v = 0;
>     {
>       void *vptr = 0;
>       int res = SWIG_ConvertPtr(argv[0], &vptr, SWIGTYPE_p_class_A, 0);
>       _v = SWIG_CheckState(res);
>     }
>     if (!_v) goto check_1;
>     return _wrap_class_A_method_2__SWIG_0(self, argc, argv);
>   }
> check_1:
>   
>   if (argc == 1) {
>     PyObject *retobj = _wrap_class_A_method_2__SWIG_1(self, argc, argv);
>     if (!SWIG_Python_TypeErrorOccurred(retobj)) return retobj;
>     SWIG_fail;
>   }

Is this a known problem? Is there a workaround?

-- 
Jim Easterbrook                 <http://www.jim-easterbrook.me.uk/>