I noticed that if I copy a site it gets WWW added.
So for example I want to copy a subsite and name it Children I see the following in New Blog Address: .www.mymuwebsite.com
So I get children.www.mymuwebsite.com as url.
Probably because I setup my subdomain wordpress multisite install with: define('DOMAIN_CURRENT_SITE', 'www.mymuwebsite.com');
Is this a problem? And if so how can I remove the WWW? Probably just changing it in wpconfig.php isn't enough?