Swift 3 NSMutableParagraphStyle : NSLineBreakMode.byWordWrapping keep breaking the words

I have a NSMutableParagraphStyle style that I apply to a NSMutableAttributedString:

import UIKit
class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        let myString = "Before a telephone call, I need to go to the bathroom..."
        let paragraphStyle = NSMutableParagraphStyle()
        paragraphStyle.lineBreakMode = NSLineBreakMode.byWordWrapping
        let myMutableString = NSMutableAttributedString(
            string: myString,
            attributes: [
                NSFontAttributeName:UIFont(
                    name: "Georgia",
                    size: 45.0
                    )!,
                NSParagraphStyleAttributeName: paragraphStyle
            ]
        )
        let textView = UITextView( frame: CGRect(
            x: 20,
            y: 25,
            width: 260,
            height: 400
        ) )
        textView.attributedText = myMutableString
        self.view.addSubview( textView )
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
}

But when I add that mutable string to a UITextView, it keeps breaking the words.

The word break does not appear at the same place when I go for paragraphStyle.lineBreakMode = NSLineBreakMode.byCharWrapping... So it does have an effect. But this is still partial. I have the word «call» that breaks after the «c», this is super weird.

And it is something I can reproduce in a storyboard editor :

Aaaaaannnnddd the solution was to try editing my code in sublime text and realise that there is a non breakable space between telephone and call.

It seems a so stupidly basic functionality. Why can't Xcode tell me that...