id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
15316,Adding users to a blog can set the primary_domain to an invalid value,westi,westi,"In {{{add_user_to_blog}}} we update the primary_domain of a user to the {{{$blog_id}}} passed in if the user doesn't have a primary_domain yet.

When adding an existing user to an existing site in a multisite setup we pass a blank string to this function ''.

In a shared usertable setup where the users were all defined elsewhere (e.g. shared with bbPress) this cause use to create blank primary_domain entries in the database.

This then causes the code in {{{get_active_blog_for_user()}}} to add the user as a subscriber on the current blog - even if actually they already had a role!
",defect (bug),closed,high,3.1,Multisite,3.0,major,fixed,,