Topic on Project:Support desk

Hello,

I'm setting up a new MediaWiki site using the following versions: MW: 1.20.3 PHP: 5.3.15 MySQL: 5.5.23-55

I noticed that when I am using MW in a full private mode, and when I, as the only admin, create a new user - the software allows me to create a user that uses the same email address as the one used for an already existing user, which may lead to trouble. Why is that? Why isn't this prohibited by the software?

I couldn't find anything in bugzilla about this, but it has long been this way. I filed this bug to request a way to stop this.

Thank you.