title: NestedScrollView doesn't scroll all the childs
body: <p>I am using CollapsingToolbarLayout with NestedScrollView, and inside the NestedScrollView I have a list of items, but in the execution I can't scroll all of them.</p>
  
  <p>In my example I'm not seeing the last TextView and some of the includes.</p>
  
  <p>This is my activity_main.xml </p>
  
  <pre><code>&lt;android.support.design.widget.CoordinatorLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:id="@+id/main_content"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:fitsSystemWindows="true"&gt;
  
      &lt;android.support.design.widget.AppBarLayout
          android:id="@+id/appbar"
          android:layout_width="match_parent"
          android:layout_height="256dp"
          android:fitsSystemWindows="true"
          android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"&gt;
  
          &lt;android.support.design.widget.CollapsingToolbarLayout
              android:id="@+id/collapsingToolbar"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:fitsSystemWindows="true"
              app:contentScrim="?attr/colorPrimary"
              app:expandedTitleMarginStart="40dp"
              app:layout_scrollFlags="scroll|exitUntilCollapsed"&gt;
  
              &lt;ImageView
                  android:layout_width="match_parent"
                  android:layout_height="match_parent"
                  android:fitsSystemWindows="true"
                  android:scaleType="centerCrop"
                  android:src="@drawable/space"
                  app:layout_collapseMode="pin"/&gt;
  
              &lt;android.support.v7.widget.Toolbar
                  android:id="@+id/toolbar"
                  android:layout_width="match_parent"
                  android:layout_height="?attr/actionBarSize"
                  android:elevation="7dp"/&gt;
  
          &lt;/android.support.design.widget.CollapsingToolbarLayout&gt;
  
      &lt;/android.support.design.widget.AppBarLayout&gt;
  
      &lt;android.support.design.widget.FloatingActionButton
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_margin="16dp"
          android:src="@drawable/ic_search"
          app:layout_anchor="@id/appbar"
          app:layout_anchorGravity="bottom|right"/&gt;
  
      &lt;!-- Your Scrollable View : Can be Nested Scroll View or Recycler View--&gt;
      &lt;android.support.v4.widget.NestedScrollView
          android:id="@+id/nestedScrollView"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          app:layout_behavior="@string/appbar_scrolling_view_behavior"&gt;
  
          &lt;LinearLayout
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:orientation="vertical"
              android:paddingTop="10dp"&gt;
  
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;include layout="@layout/item_nested_scrollview"/&gt;
              &lt;TextView
                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:text="LastOne"/&gt;
  
          &lt;/LinearLayout&gt;
  
      &lt;/android.support.v4.widget.NestedScrollView&gt;
  
  &lt;/android.support.design.widget.CoordinatorLayout&gt;
  </code></pre>
  
  <p>And this my list of items.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;android.support.v7.widget.CardView
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_marginBottom="16dp"
      android:elevation="5dp"&gt;
  
      &lt;LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_margin="15dp"
          android:orientation="vertical"&gt;
  
          &lt;TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:text="Smartherd"
              android:textColor="@color/colorPrimary"
              android:textSize="20sp"
              android:textStyle="bold"/&gt;
  
          &lt;TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_marginTop="5dp"
              android:text="@string/description"
              android:textColor="@android:color/black"
              android:textSize="15sp"/&gt;
  
      &lt;/LinearLayout&gt;
  
  &lt;/android.support.v7.widget.CardView&gt;
  </code></pre>
  
  <p>This photo at the top
  <a href="https://i.stack.imgur.com/Bqhkc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Bqhkc.png" alt="enter image description here"></a>
  And this one, when I scrolled all down as you can see it's not showing the textview even the cardview is not showing completly.
  <a href="https://i.stack.imgur.com/3OdG0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3OdG0.png" alt="enter image description here"></a></p>