title: UIStackView "Unable to simultaneously satisfy constraints" on "squished" hidden views
body: <p>When my UIStackView "rows" are squished, they throw <code>AutoLayout</code> warnings. However, they display fine and nothing else is wrong besides these sorts of loggings:</p>
  
  <blockquote>
    <p>Unable to simultaneously satisfy constraints.
        Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing <code>NSAutoresizingMaskLayoutConstraints</code> that you don't understand, refer to the documentation for the <code>UIView</code> property <code>translatesAutoresizingMaskIntoConstraints</code>) 
    (</p>
  </blockquote>
  
  <p>So, I'm not sure how to fix this yet, but it doesn't seem to break anything besides just being annoying.</p>
  
  <p>Does anyone know how to solve it? Interestingly, the layout constraints are tagged quite often with <strong>'UISV-hiding'</strong>, indicating that perhaps it should ignore the height minimums for subviews or something in this instance?</p>