Callable bug with Pystache's View

gistfile1.py

>>> import pystache
>>> from pystache import view
>>> 
>>> class Dummy(view.View):
...     pass
... 
>>> context = {'icecream': lambda flavor: "%s icecream" % flavor, 'title': 'Yummy'}
>>> template = "** {{title}}\n\n  {{#icecream}}Strawberry{{/icecream}}"
>>> 
>>> context2 = dict(context.items())
>>> context2['icecream'] = True
>>> 
>>> dummy = Dummy(template, context)
>>> dummy.render()
u'** Yummy\n\n  '
>>> dummy2 = Dummy(template, context2)
>>> dummy2.render()
u'** Yummy\n\n  Strawberry'
>>> pystache.render(template, context)
u'** Yummy\n\n  Strawberry icecream'
>>> pystache.render(template, context2)
u'** Yummy\n\n  Strawberry'
>>>