使用自定义导航栏，修改导航栏宽度后，标题会跳动

使用自定义导航栏，修改导航栏宽度后，标题会跳动。使用以下代码自定义UINavigationBar，在demo中Main将导航栏修改成该类，可复现

class JGJNavigationBar: UINavigationBar {
    @objc var margins: CGFloat = 16
    override func layoutSubviews() {
        super.layoutSubviews()

        if #available(iOS 13.0, *) {
            for view in subviews {
                if "\(view.self)".contains("UINavigationBarContentView") {
                    let margins = view.layoutMargins
                    self.margins = margins.left
                    view.frame = CGRect(x: -margins.left, y: view.bounds.origin.y, width: view.bounds.size.width  + margins.left + margins.right, height: view.bounds.size.height)

                    break
                }


            }
        } else {
            for view in subviews {
                if "\(view.self)".contains("ContentView") {
                    view.layoutMargins = UIEdgeInsets(top: view.layoutMargins.top, left: 0, bottom: view.layoutMargins.bottom, right: 0)
                    self.margins = view.layoutMargins.left
                    break
                }
            }
        }
    }
}