https://bugzilla.wikimedia.org/show_bug.cgi?id=55190
--- Comment #2 from Kunal Mehta (Legoktm) legoktm.wikipedia@gmail.com --- This has very little to do with Linux or LDAP, but rather has to do with the fact your username is 'James' and not 'james'. This is related to the 'first character is capitalized' convention on some wikis, but not all (!).
However, we could probably check whether the name has changed when the user is logged in and emit a warning when this happens (and/or store the cookie with the username as saved in the config file, but that could have some unintended consequences).