Bad mail subject encoding on new blog notification
|Reported by:||TheSteelRat||Owned by:|
Email subject is in Russian language. When trying to add new blog using page http://mysite.com/wp-admin/network/site-new.php, user gets email where subject is like - =??B??=. So I was trying to find where this bug appears. And I think, I found it.
Script tries to send notification using function wpmu_welcome_notification on line http://core.trac.wordpress.org/browser/tags/3.4.1/wp-includes/ms-functions.php#L1250. But get_option('blog_charset') returns empty string, so header is bad-generated and encoded...