The customer find that with ldap users with special chars you can login.
If you setup SGD with ldap/kerberos users with special chars I can't login.

-- Please setup ssgd 4.40.917 and some AD Server ( AD Integration (LDAP://server) )
-- Please setup one user test and try
-- Please setup one user t??st and try

-- Please change to AD Integration (Kerberos (AD://server) )
-- test working again
-- t??st don't working again 

We have also tested inhouse and seen the problem on: SGD 4.41 & 4.5 and also on Solaris platform.
I have had them try changing the LANG value to:

   export LANG=UTF-8

but the problem is still seen.

Jserver login logs will be submitted later if needed.