[chef] WebUI 500 errors

[Chris < >]

Hi chefs!

A few of my users have been complaining about timeouts from the UI. I
have yet to repro this myself, but i did happen to catch the webui log
while someone was complaining they were having issues.

heres the log output
http://pastie.org/4167984

its not obvious to me why its returning nil on the nodes controller
and any subsequent requests to the UI work just fine. anyone have any
ideas?


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