If you move the AD object using Active Directory move command, then Authentication Services will pick up the change and there should be no issue with login unless the access control group policy is no longer applying. Be sure to check the group policies that are applying before the change and after: /opt/quest/bin/vgptool rsop
To verify that QAS knows the new location you can do the below command.
Run the following command as root:
# /opt/quest/bin/vastool -u host/ info id