Thank you Alchymyth!
This is something that WordPress need to fix. Making a 2 col custom template should be easy… and it’s not if you have to add individual template pages to the functions.php file. It’s messy.
However, since it works that way I’m happy enough for now.
@esmi, it’s not how it was supposed to look. If you use sidebar template you get what it should look like. But if you copy sidebar template and give it a new name it adds in singular to the body class (it’s not there when you use the original sidebar template). Hope it gets fixed in the next update.