still losing session userdata across a redirect

I don't think anyone else has mentioned it, but I've learned that there can be problems with the order that you set session data and do the redirect. I always set the redirect before writing to the session. I've had problems changing that order in the 

I don't really understand. But ill try it.

I don't really understand the reason either, but it has made a difference for me when doing redirects and dealing with sessions.

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