[Mediawiki-l] users password is not persistent

[Riccardo Veraldi]

hello,
when I try to cahnge a user password with  changePassword.php  
maintenance program,
password is correctly changed and user can logon.

but if I restart mysql daemon, user cannot logon anymore, because 
passsword does not work.

Looks like password is stored only untli mysql is restarted

the sames also happens changing password manually inside the user table 
in the wiki database
any clue ?

thanks

Rick