Description:
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I have a shopping cart.
With unlogged in user, I cannot clean it.
(unset($_SESSION['order']);
session_commit();)
But with a logged in user, it works fine.
(it has some other session variables)

I fixed the bug, with issuing an other session_start() right before the unset block.

Test script:
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// I cannot give you the whole code part :(
// I set the $_SESSION['order'] in an other php file, and it's working fine
session_start();
// some long processing codeing
            if (isset($_SESSION['order'])) {
                session_start(); // <=== this has to be here to work, without it, does not works
                unset($_SESSION['order']);
                session_commit();
            }


Expected result:
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the $_SESSION['order'] to be unset
(For unlogged in user, it should be an empty session,
for a logged in user, it works fine 'o,O' )

Actual result:
--------------
It should clear the $_SESSION['order'] for unlogged in users too.
(I also tried to add some new values to other session variables to save it, but it was not working :( )