fixed caching bug and related issues

Hmm you're right!


On Sat, Aug 2, 2014 at 1:56 PM, James A. Bednar <notifications@github.com>
wrote:

> In imagen/__init__.py:
>
> >          current_generator = self.get_current_generator()
> > -        return current_generator.channels()
> > +
> > +        res = current_generator.channels(use_cached=True)
>
> Shouldn't that be use_cached=use_cached? Otherwise, it seems to be
> ignoring the argument that's being passed in to channels().
>
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> <https://github.com/ioam/imagen/pull/36/files#r15728900>.
>