Authentication using LDAP and user names with dots

[Eric ter Haar]

I already tried to post this question earlier via the ObjectWeb Sympa 
interface, but did not see it back in the archive list, nor did I get a 
e-mail confirmation. So please excuse me if it is posted twice now.

I am currently evaluating XWiki for deployment in my company. So far 
everything looks great, but I ran into a blocking issue. I have setup 
XWiki to authenticate with LDAP, which is a requirement for us. The user 
names provided by our LDAP server all have dots in them, like 
'eric.ter.haar'. XWiki seems to have a problem with this. When login in 
for the first time it creates a new user name that is equal to the part 
after the last dot, e.g., 'haar'. And it creates a space with the other 
part, like 'eric.ter'. The next login fails but without any notice.
Does anyone know how to get around this?

Thanks,
Eric