[Typo3-dev] How sessions work?

["Stig N. Færch"]

I have a problem with be-sessions.

Could someone please try to explain how they work?



And maybe someone have a solution to my problem as well?

I have created a hook in the fetchGroups function in the userauthgroup 
class. (which I hope will be officially implemented later on)

In the hook-function I need access to some data which are stored in 
$BE_USER->uc. My problem is that the data are not there yet.

I have narrowed it down that it must be because that the arrays in 
$BE_USER->uc haven't yet been filled at this point.

Any ideas how to get these data in another way?

/Stig