title: CollapsingToolbarLayout gets focus all the time (support library 26.0.1)
body: <p>I wanted <code>CollapsingToolbarLayout</code> to have inertia that does not work properly in 25.x support library, so I updated to 26.0.1 (it was fixed after years of complaining). But I noticed that now it has another issue: I have <code>NestedScrollView</code> with <code>Button</code> and some <code>TextViews</code> (below <code>AppBarLayout</code> that has <code>CollapsingToolbarLayout</code>), and I have to press button twise to make it work, because of focus, I suppose. Then I scroll <code>NestedScrollView</code> a bit and press some <code>TextView</code>s, and after that button works again only after second click.</p>
  
  <p>when I click outside the button <code>onWindowFocusChanged(true)</code> in <code>CollapsingToolbarLayout</code> triggers.</p>
  
  <p>I tried calling <code>setFocusable</code> and <code>setFocusableInTouchMode</code>, but without any luck. If you have any ideas how to make button work with first click, please, help.</p>
  
  <p>p.s. 25.3.1 support library does not have this issue.</p>