Passing BindingResult through RedirectionAttributes

Question

I am stuck trying to passing the BindingResult through RedirectionAttributes:

I have referenced Spring - Redirect after POST (even with validation errors), but am still stuck.

I have a GET method:

@RequestMapping(value = "/test", method = RequestMethod.GET)
public String test(@ModelAttribute("exampleForm") final ExampleForm exampleForm, final Model model)
{
    return "test";
}

and a POST method:

@RequestMapping(value = "/doSomething", method = RequestMethod.POST)
public String doSomething(@Valid @ModelAttribute("exampleForm") final ExampleForm exampleForm, final BindingResult bindingResult, final RedirectAttributes redirectAttributes)
{
    if (bindingResult.hasErrors())
    {
        redirectAttributes.addFlashAttribute("org.springframework.validation.BindingResult.exampleForm", bindingResult);
        redirectAttributes.addFlashAttribute("exampleForm", exampleForm);
        return "redirect:/test";
    }
}

However, I am not seeing binding errors in the model of the GET method (after redirect) when I receive them in the POST method - they seem to disappear.

Here is the bindingResult object in the POST method: org.springframework.validation.BeanPropertyBindingResult: 1 errors

Here is the model entry in the GET method showing 0 errors: org.springframework.validation.BindingResult.exampleForm=org.springframework.validation.BeanPropertyBindingResult: 0 errors

Any help would be much appreciated.