No ripples for MaterialCardView : <p>Are there no ripples on the new <code>MaterialCardView</code>?</p>

<p>I used <code>CardView</code> with <code>android:clickable="true"</code> and <code>android:foreground="?android:attr/selectableItemBackground"</code> which worked fine but with the new <code>MaterialCardView</code> there are no ripples at all 😰.</p>

<p>Other <code>View</code>s etc. keep working but I want my <em>card</em> to be clickable (with ripple as feedback).</p>
