At char select, the char server will set character to server -2 (server unknown) rather then -1 (at char select) and will be changed to the map server id once the character loads in.
git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@12569 54d463be-8e91-2dee-dedb-b68131a5f0ec