Handlebars lambda helper function args

Hasndlebars fails to pass 'options' object to lambda invoked with no parameters

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/handlebars.js/1.0.0/handlebars.min.js"></script>
<div id="content"></div>

<script id="with-args" type="text/x-handlebars-template">
    {{#lambda1 'arg'}}Hello {{name}}{{/lambda1}}
</script>

<script id="no-args" type="text/x-handlebars-template">
    {{#lambda0}}Hello {{name}}{{/lambda0}}
</script>

<script>
    var cel = document.getElementById('content')
    ,   telOK = document.getElementById('with-args')
    ,   telFAIL = document.getElementById('no-args')
    ,   context = {
            name: 'Test',
            lambda0: function(options) {
                console.log('labda0 got correct args?', arguments.length == 1) // false; should be true
                return options.fn(this) // throws, options is undefined
            },
            lambda1: function(arg, options) {
                console.log('lamda1 got correct args?', arguments.length == 2) // true
                return options.fn(this)
            }
        }

    // works as expected:
    cel.innerHTML += '<p>LAMBDA 1: '+Handlebars.compile(telOK.innerHTML)(context)+'</p>'

    try {
        cel.innerHTML += '<p> LAMBDA 2: '
        cel.innerHTML += Handlebars.compile(telFAIL.innerHTML)(context) // throws
    } catch (e) {
        cel.innerHTML += e.message
    } finally {
        cel.innerHTML += '</p>'
    }
</script>