Bar button item custom view not detecting UITapGesture

Code Block 
private var leftBarButtonItem: UIBarButtonItem = {
	let b = UIBarButtonItem()
	return b
}()
private lazy var imageView: UIImageView = {
	let iv = UIImageView()
	//... some adicional setup
	iv.isUserInteractionEnabled = true
	return iv
}()
func setupBBItem() {
	let holderView = UIView()
	holderView.isUserInteractionEnabled = true
	
	holderView.addSubview(imageView)
	imageView.frame = //... some frame
	//... more setups here
	
	holderView.isUserInteractionEnabled = true
	
	
	leftBarButtonItem.customView = holderView
	navigationItem.leftBarButtonItem = leftBarButtonItem
	
	let gesture = UITapGestureRecognizer(target: self, action: #selector(someFunction))
	imageView.addGestureRecognizer(gesture)
}
@objc private func someFunction() {
  print("tap gesture detected")
}