[Rails] Re: when is_a? fails and a Foo isn't a Foo

I think you nailed it Fred. Restarting the app with cache_classes on
fixed the error.

Both the Account and Node models are simple classes though, so I'm not
sure where the reloading is becoming a problem.

Why wouldn't simply restarting the server with cache_classes off fix
something like this as long as I don't modify any code? I tried and the
only thing that got rid of the error was to turn off cache_classes.

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