select chan to _ error

[StringNick]

V version: OS:

What did you do? https://devbits.app/play/bYZPuLU5abFe

import context

fn main() {
    mut ctx := context.todo()
    select {
        _ := <- ctx.done() {}
        else {
        }
    }
}```

**What did you expect to see?**
no error
 
**What did you see instead?**
error