title: API docs getFeaturesInExtent
body: <p>I'm having difficulties to understand the API docs for <code>getFeaturesInExtent</code>:
  <a href="https://openlayers.org/en/latest/apidoc/module-ol_source_Vector-VectorSource.html#getFeaturesInExtent" rel="nofollow noreferrer">https://openlayers.org/en/latest/apidoc/module-ol_source_Vector-VectorSource.html#getFeaturesInExtent</a></p>
  
  <blockquote>
    <p>Get all features in the provided extent. Note that this <strong>returns an array of all features intersecting the given extent</strong> in random order (<strong>so it may include features whose geometries do not intersect the extent</strong>).</p>
  </blockquote>
  
  <p>How is it possible that the returned array may include features whose geometries do not intersect the extent, if <code>getFeaturesInExtent</code> returns an array of all features intersecting the given extent?</p>