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User-Agent: Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.0 (like Gecko)

Description of problem:
I'm having the same problem as described on http://bugs.php.net/bug.php?id=27963  
  
"When PHP code is run that explicitly sets (and overrides) the default  
value of session_module_name, subsequent requests to that httpd process  
use the value that was set and do not default back to the default value."  

Version-Release number of selected component (if applicable):
php-4.3.2-26.ent

How reproducible:
Always

Steps to Reproduce:
Default Value in php.ini: session_module_name("files"); 
 
In your code, specify session_module_name("user"); 
 
Set your apache server to run with only one httpd process - run your 
code setting session_module_name to user. 
 
Subsequent requests by a page not setting the session_module_name value 
will have the session_module_name set to user and not default back to 
files. 

Actual Results:  session_module_name retains the last value set, not the default value. 

Expected Results:  When you don't specify session_module_name it should set back to the 
default value. 

Additional info:

This is fixed in php 4.3.6 , but RHEL 3 ES comes with php 4.3.2-26 and doesn't contain  
a back poorted version of this fix.  
 
We are running about 200 sites and if some one uses session_module_name("user") 
this breaks other sites.