Error with CoordinatorLayout

XML:

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fitsSystemWindows="true">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="?attr/colorPrimary"
            android:minHeight="?attr/actionBarSize"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
            app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" />

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:padding="6dp">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Opção de Pesq.: "
                    android:textColor="@color/black"
                    android:textSize="@dimen/font_size_normal" />

                <Spinner
                    android:id="@+id/comboOpcaoPesqCliente"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:drawSelectorOnTop="true"
                    android:textSize="@dimen/font_size_normal" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:padding="6dp">

                <EditText
                    android:id="@+id/edPesquisaCliente"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:hint="Digite para pesquisar"
                    android:imeOptions="actionDone"
                    android:singleLine="true"
                    android:textSize="@dimen/font_size_editText" />

                <Button
                    android:id="@+id/btLimpar"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Limpar"
                    android:textColor="@color/black"
                    android:textSize="@dimen/font_size_normal" />
            </LinearLayout>
        </LinearLayout>

        <FrameLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <android.support.v7.widget.RecyclerView
                android:id="@+id/recyclerViewListaClientes"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@color/white"
                android:cacheColorHint="@android:color/transparent"
                android:clipToPadding="false"
                android:divider="@null"
                android:dividerHeight="0dp"
                android:listSelector="@android:color/transparent"
                android:scrollbarStyle="outsideOverlay"
                android:scrollbars="vertical" />

            <ProgressBar
                android:id="@+id/progressBar"
                style="@android:style/Widget.ProgressBar.Large"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_gravity="center|center_vertical"
                android:layout_marginRight="6dp"
                android:visibility="invisible" />

        </FrameLayout>
    </LinearLayout>

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

I added this to the activity in Manifest:

android:windowSoftInputMode="adjustPan"

What's going wrong is the following:

When I scroll down the list and the Toolbar hides and I click on an EditText and the keyboard opens, then when I close the keyboard and roll the list up, the Toolbar simply disappears, but this only happens when the keyboard is open when the Toolbar is hidden:

Photo: Before:

Then: