New shortcut: redirect_with_params()

[agustin bacigalup]

I'd like to contribute to Django by adding a shorcut, similar to django.shortcuts.redirect but also appends request's GET parameters. I found myself using it a lot, and I wonder if it's useful for the community. If so, should I fork Django on Github and submit a pull request?

def redirect_with_params(request, to, *args, **kwargs):
    """
    Same as `django.shortcuts.redirect` but recieves a `request` as first parameter.
    It preserves the GET parameters from the `request` in the URL redirected.
    """
    response = redirect(to, *args, **kwargs)
    url = response.url
    params = request.GET.urlencode()
    if params:
        url = "%s?%s" % (response.url, params)
    return response.__class__(url)