Redmine

We have an environment where my username for svn:// access is "Surname"
while my LDAP account is "surname", with different passwords.
As soon as I configure the access to svn:// with my username and password
while my Redmine account is configured as LDAP account, noone is able to
login with LDAP accounts anymore and all repositories that use my useraccount
to gather the revisions do not work anymore.
I am not sure if using both with the same casing works better, should I test
that? What else can I do to help?

Environment:
Everything is windows here, using the Bitnami Redmine stack (Version 2.5.1)

MySQL Version                  5.5.36
  Redmine version                2.5.1.stable
  Ruby version                   1.9.3-p231 (2012-05-25) [i386-mingw32]
  Rails version                  3.2.17
  Environment                    production
  Database adapter               Mysql2

SCM:
Subversion 1.8.5
Git 1.9.0
Filesystem

Redmine plugins:
redmine_code_review 0.6.3