UILabel wrong behaviour when numberOfLines limited with byTruncatingTail lineBreakMode.

Number:rdar://FB9997889 Date Originated:
Status:Open Resolved:
Product:UIKit Framework Product Version:iOS 15.5
Classification:Incorrect/Unexpected Behavior Reproducible:Always
Text set on UILabel is repeated when it does not fit within the limit of number of lines and lineBreak mode is set to .byTruncatingTail.

You can repet this behaviour in playground with this code (only iOS 15.5(iPhone X) it works on 14.8 that I have on my other iPhone SE 2):
import UIKit
import PlaygroundSupport

class MyViewController : UIViewController {
    let text = "aaaaaaaaaaaaa bbbbbbb cccccc\n\nddddd eee ffff ggggggggg hhhh, iiiii jjjjjjj, kkk llll mmmmmmmmmmmm nnn ooooooo uuuuuu ppppppp rrrrrr ssss"
    override func loadView() {
        let view = UIView()
        view.backgroundColor = .white

        let label = UILabel()
        label.translatesAutoresizingMaskIntoConstraints = false
            label.topAnchor.constraint(equalTo: view.topAnchor),
            label.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            label.trailingAnchor.constraint(equalTo: view.trailingAnchor),
            label.bottomAnchor.constraint(equalTo: view.bottomAnchor)
        self.view = view

        label.text = text
        label.lineBreakMode = .byTruncatingTail
        label.numberOfLines = 4
// Present the view controller in the Live View window
PlaygroundPage.current.liveView = MyViewController()


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