Apache redirection


First of all sorry for my english, I’m spanish speaker.

I did installed GitLab 7.11.4 in a Linux Ubuntu 12.04 server with apt method, everything works fine but for login I need to go directly to /users/sign_in, when I go to / (git.mydomain.com) apache redirects to www.mydomain.com.

Here is my apache virtualhost config:

ServerName git.mydomain.com
  ServerSignature Off

  ProxyPreserveHost On

  <Location />
    Order deny,allow
    Allow from all

    ProxyPassReverse http://git.mydomain.com/

  RewriteEngine on
  RewriteRule .*{REQUEST_URI} [P,QSA]

  # needed for downloading attachments
  DocumentRoot /var/opt/gitlab/public

  #Set up apache error documents, if back end goes down (i.e. 503 error) then a maintenance/deploy page is thrown up.
  ErrorDocument 404 /404.html
  ErrorDocument 422 /422.html
  ErrorDocument 500 /500.html
  ErrorDocument 503 /deploy.html

Am I missing something?

Thanks in advance.

ninfowarro beta2nd class