Doing a first bind, then a second with an argument, it fails with:Exception in thread "main" java.lang.IllegalArgumentException: no argument type to append

If no argument is passed, the previously bound this is still the context when doing the second call.

var obj = {
    hello:"From obj",
};
var obj2 = {
    hello:"From obj2",
};

function doit(cb){
    cb();
    var cb2 = cb.bind( obj2, "This one is not acccepted");
    cb2();
}

doit(function(){
        print(this.hello);
    }.bind(obj));