The mailing list for listmasters using Sympa

[John Dalbec <address@concealed>]

I have Sympa 3.3.3 in production currently.  I was trying to send 
e-mails to several groups of people by creating a single list and 
updating the SQL query for each group.  However, when I updated the SQL 
query, sympa kept using cached data for the mailing list.  I dropped the 
lookup timeout to 1 second and that seemed to help, but shouldn't Sympa 
recognize when the configuration file has been updated and refresh the 
in-memory list of addresses?  Does the in-memory list of addresses have 
a timestamp?  Does 3.4.4.1 fix this?
Thanks,
John Dalbec