title: Nested Scroll View Scrolling Issue
body: <p>I have a horizontal recycler view inside vertical nested scroll view.
  Everything works fine until there is no item inside recycler view once item added inside recycler view the scroll view starts lagging(not scrolling smoothly)</p>
  
  <p>I have tried almost everything.
    like:
       //recycler view
    <code>additionalList.setNestedScrollingEnabled(false);</code></p>
  
  <p>Recycler View layout(inside child fragment):</p>
  
  <pre><code> &lt;RelativeLayout
          android:focusableInTouchMode="true"
          android:focusable="true"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"&gt;
  
          &lt;LinearLayout
  
              android:id="@+id/add_image"
              android:layout_width="80dp"
              android:layout_height="80dp"
              android:layout_marginTop="@dimen/default_margin"
              android:background="@color/grey1"
              android:gravity="center"&gt;
  
              &lt;ImageView
                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:src="@drawable/ic_add_image" /&gt;
          &lt;/LinearLayout&gt;
  
          &lt;android.support.v7.widget.RecyclerView
              android:layout_marginTop="@dimen/default_margin"
              android:id="@+id/additional_art_list"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_toRightOf="@id/add_image" /&gt;
      &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>Nested Scroll View Layout(Fragment Container):</p>
  
  <pre><code>    &lt;NestedScrollView    xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      xmlns:autolabel="http://schemas.android.com/apk/res-auto"
      android:id="@+id/observableScrollView"
      android:fillViewport="true"
      android:overScrollMode="never"
      android:scrollbars="none"
      android:layout_width="match_parent"
      android:layout_height="match_parent"&gt;
    &lt;FrameLayout
              android:layout_marginTop="@dimen/default_margin"
              android:layout_below="@id/container_purchase_detail"
              android:id="@+id/container_premium_features"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"&gt;
   &lt;/FrameLayout&gt;
  &lt;/NestedScrollView&gt;
  </code></pre>