migrations do not work on new install

The redeploy of staging.jujucharms.com failed because some of the migrations assume there is a db and index. There are not in this case, and we know that the migration in question has already run in production.

 HOOK + '[' true == true ']'
 HOOK + cd /home/webops_deploy/charmworld
 HOOK + su charmworld -c 'INI=/home/webops_deploy/charmworld/production.ini bin/migrations upgrade --init'
 HOOK Traceback (most recent call last):
 HOOK File "bin/migrations", line 9, in <module>
 HOOK load_entry_point('charmworld==0.0', 'console_scripts', 'migrations')()
 HOOK File "/home/webops_deploy/charmworld/charmworld/migrations/migrate.py", line 407, in main
 HOOK args.func(ini, args)
 HOOK File "/home/webops_deploy/charmworld/charmworld/migrations/migrate.py", line 386, in upgrade
 HOOK new_version = migrations.upgrade(ds, index_client, args.init)
 HOOK File "/home/webops_deploy/charmworld/charmworld/migrations/migrate.py", line 299, in upgrade
 HOOK self.run_migration(datastore.db, index_client, module_name)
 HOOK File "/home/webops_deploy/charmworld/charmworld/migrations/migrate.py", line 224, in run_migration
 HOOK getattr(module, 'upgrade')(db, index_client)
 HOOK File "/home/webops_deploy/charmworld/charmworld/migrations/versions/018_delete_all_bundles.py", line 10, in upgrade
 HOOK index_client._client.delete_all(index_client.index_name, BUNDLE)
 HOOK File "/home/webops_deploy/charmworld/local/lib/python2.7/site-packages/pyelasticsearch/client.py", line 96, in decorate
 HOOK return func(*args, query_params=query_params, **kwargs)
 HOOK File "/home/webops_deploy/charmworld/local/lib/python2.7/site-packages/pyelasticsearch/client.py", line 428, in delete_all
 HOOK query_params=query_params)
 HOOK File "/home/webops_deploy/charmworld/local/lib/python2.7/site-packages/pyelasticsearch/client.py", line 254, in send_request
 HOOK self._raise_exception(resp, prepped_response)
 HOOK File "/home/webops_deploy/charmworld/local/lib/python2.7/site-packages/pyelasticsearch/client.py", line 268, in _raise_exception
 HOOK raise error_class(response.status_code, error_message)
 HOOK pyelasticsearch.exceptions.ElasticHttpNotFoundError: (404, u'IndexMissingException[[charms] missing]')