Output widgets do not render in dashboard

[funnydevnull]

I have a dashboard notebook which uses Output widgets and callbacks to bind outputs of one cell to widgets rendered in another. This lets me have a single set of controls that effect several different plots and then use the layout extension to lay them out nicely. While all the above works in the notebook and the preview dashboard when I publish this to the dashboard server the output widgets don't render (if I move them back into a single monolithic @interact block they do render). I think this might be related to the fact that Output widgets have only recently gotten support in embedded bundles (issue 1410 in ipywidgets). Any idea if there is a way around this since it makes it quite hard to build a nicely laid out dashboard.