Description:
------------
When running some scripts the scripts runs twice. We are using apache 2 on a suse linux box. It generaly happens when the header function is being used with the location header. The script want get a far as the header but will re-run. If i put a die in it wont die and will still run twice. I have tested this by adding a seesion var names count and incrementing it each time the script is run. I always get two.

Reproduce code:
---------------
<?php
  
  session_start();

  if(!isset($_SESSION["Count"])){
      $_SESSION["Count"]++;
  }
  else{
      $_SESSION["Count"] = 0;
  }

  header("Location:gosomeware.php");

?>

Expected result:
----------------
Should out put 0

Actual result:
--------------
1