UIButton.Configurationを利用するとself.titleLabel.numberOfLinesを設定しても反映されないための対応

gistfile1.txt

convenience init() {
        self.init(frame: .zero)
        translatesAutoresizingMaskIntoConstraints = false
        if #available(iOS 15, *) {
            var config: UIButton.Configuration = .filled()
            config.titleAlignment = .center
            config.titleLineBreakMode = .byWordWrapping

            let vPadding: CGFloat = 8.0
            let hPadding: CGFloat = 12.0
            config.contentInsets = NSDirectionalEdgeInsets(
                top: vPadding,
                leading: hPadding,
                bottom: vPadding,
                trailing: hPadding
            )

            var backgroundConfig: UIBackgroundConfiguration = .clear()
            backgroundConfig.backgroundColor = .buttonTertiaryWhite
            backgroundConfig.cornerRadius = 10.0
            config.background = backgroundConfig
            configuration = config

            // NOTE: UIButton.Configurationを利用するとself.titleLabel.numberOfLinesを設定しても反映されないための対応
            configurationUpdateHandler = { button in
                if let titleLabel = button.titleLabel {
                    DispatchQueue.main.async {
                        titleLabel.numberOfLines = 2
                        titleLabel.lineBreakMode = .byTruncatingTail
                    }
                }
            }
        }
    }