KeyError 'summary' accessing a key that is now an attr

[Curtis Hovey]

2013-07-03 08:33:12 [4090] [ERROR] http://staging.jujucharms.com/charms/precise
Traceback (most recent call last):
....
local/lib/python2.7/site-packages/chameleon/template.py", line 179, in render
    self._render(stream, econtext, rcontext)
  File "charm_collection_fd1bad13ecf260f7678376594fea17248054c601.py", line 737, in render
  File "main_a8392740138c82a19f56e99d62da4c0c790e2848.py", line 1695, in render_page
  File "charm_collection_fd1bad13ecf260f7678376594fea17248054c601.py", line 588, in __fill_content
KeyError: 'summary'

 - Expression: "charm['summary']"
 - Filename: /home/webops_deploy/charmworld/charmworld/templates/charm-collection.pt
 - Location: (37:23)

 - Source: <td tal:content="charm['summary']"></td>
                                ^^^^^^^^^^^^^^^^
 - Arguments: repeat: {...} (0)
               renderer_name: charmworld:templates/charm-collection.pt
               charms: <list - at 0x3503b00>
               renderer_info: <RendererHelper - at 0x2f83650>
               onload:
               sub_only: False
               req: <RequestWithUserAttribute - at 0x38562d0>
               breadcrumbs: <list - at 0x3c93440>
               request: <RequestWithUserAttribute - at 0x38562d0>
               project: Charm Browser
               context: <RootFactory - at 0x3856c10>
               main: <PageTemplateFile - at 0x3c5c190>
               sections: <list - at 0x37eae60>
               view: <function series_collection at 0x2f77140>