[Dovecot] Correction of home and mail directory config

["L. Grün"]

Hello,
after running dovecot for a while, I stumbled accross the warning, not 
to have mail and home directory settings point to one and same directory.
Here is the output of dovecot -n:

 > dovecot -n
# 1.2.15: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-5-686 i686 Debian 6.0.4 ext3
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: imaps imap
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/lib/dovecot/imap-login
mail_max_userip_connections: 100
mail_privileged_group: mail
mail_uid: 5000
mail_gid: 5000
mail_location: maildir:/var/vmail/%d/%n/Maildir
mail_full_filesystem_access: yes
mbox_write_locks: fcntl dotlock
namespace:
   type: private
   separator: .
   inbox: yes
   list: yes
   subscriptions: yes
lda:
   auth_socket_path: /var/run/dovecot/auth-master
   postmaster_address: xxxx at xxxx.org
   mail_plugins: sieve
   log_path:
auth default:
   mechanisms: plain login
   passdb:
     driver: sql
     args: /etc/dovecot/dovecot-sql.conf
   userdb:
     driver: static
     args: uid=5000 gid=5000 home=/var/vmail/%d/%n/Maildir 
allow_all_users=yes
   socket:
     type: listen
     client:
       path: /var/spool/postfix/private/auth
       mode: 432
       user: postfix
       group: postfix
     master:
       path: /var/run/dovecot/auth-master
       mode: 384
       user: vmail

In "args: uid=5000 gid=5000 home=/var/vmail/%d/%n/Maildir 
allow_all_users=yes" I should delete  "Maildir".

My question is:
What files do I have to copy from /Maildir to the home directory 
/var/vmail/%d/%n/ ?
Are there other side effects, I have to consider?

Thank you very much for your help!

Stefan