TableHeaderColumn editable false has two different UI's?

Hi.
Relating to the issue #834, the following two sources show me different UI.
I was expecting the UI like the first one below, but it becomes the second one.
Do you know why it is?

1) When just setting editable={false}, it is just like a label.
```

```

2) When calling a function, it is a disabled textfield.
```
checkEditable(cell) {
return false;
}
render() {
return(

...

);
}
```