[Mediawiki-l] Usernames with "_" allowed?

[J.D.]

Hi,

we dont give up with the new wiki. Just a question.
We have usernames like "ab_cde".If one of us willlogin we see a failure
"bla ...the username "ab cde" dont exists".
Will wiki delete the "_" ? We need the "_" and in Wiki 1.4.7.ist works.

Thanks