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compile 'com.android.support:appcompat-v7:23.2.1'
compile 'com.android.support:design:23.2.1'

Please see issue 36949180.
A fix for that causes now this.

<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    >

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:elevation="4dp"
            app:layout_collapseMode="pin"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

    <ImageView
        android:background="@android:color/black"
        android:layout_gravity="bottom"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_search_white_24px"
        />

    <android.support.v7.widget.AppCompatImageView
        android:background="@android:color/black"
        android:layout_gravity="bottom"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:srcCompat="@drawable/ic_search_white_24px"
        />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/fab_margin"
        app:srcCompat="@drawable/ic_search_white_24px"
        app:borderWidth="0dp"
        app:elevation="4dp"
        android:layout_gravity="bottom|end"
        app:rippleColor="@color/colorPrimaryDark" />

</android.support.design.widget.CoordinatorLayout>