Nested NSStackViews lead to ambiguous layout

TestView.swift

import Cocoa

final class TestView : NSView {
  
  static func makeAndAttachToView(_ rootView: NSView) {
    let view = TestView()
    view.translatesAutoresizingMaskIntoConstraints = false
    rootView.addSubview(view)
  
    NSLayoutConstraint.activate([
      view.leadingAnchor .constraint(equalTo: rootView.leadingAnchor),
      view.trailingAnchor.constraint(equalTo: rootView.trailingAnchor),
      view.topAnchor     .constraint(equalTo: rootView.topAnchor),
      view.bottomAnchor  .constraint(equalTo: rootView.bottomAnchor)
    ])
  }

  override init(frame: NSRect) {
    super.init(frame: frame)
    
    NSLayoutConstraint.activate([
      widthAnchor .constraint(equalToConstant: 320),
      heightAnchor.constraint(equalToConstant: 200)
    ])
    
    func makeStackView(_ orientation : NSUserInterfaceLayoutOrientation,
                       _ alignment   : NSLayoutConstraint.Attribute,
                       _ view        : NSView)
         -> NSStackView
    {
      // The subclasses are just for debugging in the Xcode View Debugger
      let v = NSStackView(views: [view])
      v.translatesAutoresizingMaskIntoConstraints = false
      v.orientation = orientation
      v.alignment   = alignment
      v.spacing     = 2.0
      return v
    }
    
    let searchField = NSSearchField(frame: NSMakeRect(0, 0, 128, 128))
    
    #if false // not ambiguous
      let view = makeStackView(.horizontal, .centerY, searchField)
    #else // ambiguous
      let view = makeStackView(.horizontal, .centerY,
        makeStackView(.vertical, .width, // .leading
                      searchField)
      )
    #endif
    
    addSubview(view)

    NSLayoutConstraint.activate([
      view.leadingAnchor .constraint(equalTo: self.leadingAnchor),
      view.trailingAnchor.constraint(equalTo: self.trailingAnchor),
      view.topAnchor     .constraint(equalTo: self.topAnchor),
      view.bottomAnchor  .constraint(equalTo: self.bottomAnchor)
    ])
  }
  
  required init?(coder decoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
  }
}

This removes the ambiguity:

      let innerStack =  makeStackView(.vertical, .width, // .leading
                                      searchField)
      innerStack.setHuggingPriority(.defaultHigh, for: .vertical) // <=
    
      let view = makeStackView(.horizontal, .centerY, innerStack)

Note: it really is the NSStackView specific setHuggingPriority(_:for:), not setContentHuggingPriority(_:for:), which still results in the ambiguity.