Dialogs may break hide animation

[MFlisar]

After opening a dialog it sometimes happens that this breaks the fab animation and the fab vanishes and is not shown again. The video shows that the fab does not appear anymore after opening the dialog the second time. I think this is related to using focus while animating, but I'm not 100% sure about this. Often the fab is not shown after shwoing the dialog the first time as well...

I could observe, that this only happens if the dialog has an EditText that instantly requests focus and opens the keyboard.

For your information, I'm not doing anything with the fab myself like hidding it or pinning it, it's placed at a fix position and is not shown/hidden while scrolling the list - as you can see in my example layout.

Here's a video showing the behaviour:

Example layout

<layout xmlns:android="http://schemas.android.com/apk/res/android"
		xmlns:app="http://schemas.android.com/apk/res-auto">

	<android.support.design.widget.CoordinatorLayout
		android:id="@+id/coord"
		android:layout_width="match_parent"
		android:layout_height="match_parent">

		<android.support.v7.widget.RecyclerView
			android:id="@+id/rvSidebar"
			android:clipToPadding="false"
			android:layout_width="match_parent"
			android:layout_height="match_parent"
			android:paddingBottom="@dimen/page_padding_plus_extra_space_for_fab"
			android:paddingTop="@dimen/page_padding"/>

		<TextView
			android:id="@+id/tvEmpty"
			android:text="@string/no_items"
			android:padding="8dp"
			android:layout_gravity="center"
			android:layout_width="match_parent"
			android:layout_height="wrap_content" />

		<android.support.design.widget.FloatingActionButton
			android:id="@+id/fab"
			android:layout_width="wrap_content"
			android:layout_height="wrap_content"
			android:layout_gravity="bottom|right|end"
			android:layout_margin="16dp"
			app:backgroundTint="?attr/colorPrimary"
			app:fabSize="normal"
			app:ico_color="@color/md_white_1000"
			app:ico_icon="@string/gmd_add"
			app:ico_size="24dp"
			app:ico_padding="4dp"/>

		<com.hlab.fabrevealmenu.view.IconicsFABRevealMenu
			android:id="@+id/fabMenu"
			android:layout_width="match_parent"
			android:layout_height="match_parent"
			app:animateItems="true"
			app:menuBackgroundColor="?attr/colorPrimary"
			app:menuDirection="up"
			app:menuRes="@menu/fab_menu_sidebar"
			app:menuTitleTextColor="@color/md_white_1000"
			app:menuTitleDisabledTextColor="@color/md_grey_400"
			app:menuSize="small"
			app:showOverlay="true"
			app:showTitle="true"
			app:overlayBackground="#00000000"/>

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

</layout>