bug or feature?

[nosp]

On Fri, 2003-12-05 at 17:43, Elton Woo wrote:
> Logging out should "flush" the root permissions, IMVHO.

I guess the motivation is that if user X successfully becomes root,
within a specified timeout period user X can become root again.  I'm
sure that if user X became root, logged out, and user Y logged in, they
would *not* be able to take advantage of user X's cached privileges. 
Seems like a good feature to me -- though I'm sure it can be disabled.