Forms stay disabled when an ajax request is cancelled

To validate a form on my site I'm hooking the onsubmit event of that form.
That particular form is already remotized.
In my hook function I'm calling cancelXhr() when the form doesn't validate successfully.
Unfortunately the form stays disabled afterwards.

$(document).onReady(function() {
    var form = $('searchform');
    var q = $('query');

    form.remotize({ onSuccess: loadTitlelist });
    q.focus();
    form.on({'submit': function() {
        if (!q.value()) {
            form.cancelXhr()
            q.focus();
            seterror ('Please enter a query before trying to search');
        }
    }});
});