SearchView is invisible with the collapseActionView parameter since 24.1 design library

Question

I'm having a problem since I updated the Android Design library from 23.4.0 to 24.1.1

My SearchView was defined as follows:

<item android:id="@+id/action_search" android:icon="@drawable/ic_search" android:title="@string/title_action_search" app:actionViewClass="android.support.v7.widget.SearchView" app:showAsAction="collapseActionView|ifRoom" /> 

But my SearchView input has become invisible (I can write in it, but the text or tooltip is not displayed).

I described it in the following figure with three different steps:

If I remove the "collapseActionView" parameter, it works fine, but searchInput is only half the screen (instead of full width).

Do you know if there are changes in this library that could explain this?

Thanks in advance! (And sorry for the image quality ...)