title: Not understanding a class property
body: <p>I'm seeing some code in an approved code review, but not sure what the author was doing. It's a property in a class. Never seen this:</p>
  <p><code>public IEnumerable&lt;string&gt; XAxisLabels { get =&gt; null; set {; } }</code></p>
  <p>It seems the getter will always return null. And I'm not sure what the setter is doing. What is:
  <code>{ ; }</code></p>
  <p>The class does have an interface, which has:
  <code>IEnumerable&lt;string&gt; XAxisLabels { get; set; }</code></p>
  <p>The author, unfortunately, is not contactable anymore.</p>
  <p>Seems dangerous:</p>
  <p><a href="https://i.stack.imgur.com/Xx3YO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Xx3YO.png" alt="enter image description here" /></a></p>