Android - SearchView deletes typed letters

Question

I don't understand how, but it was working fine up till yesterday... now I changed some things around and happens that, whenever I type something in the Search box of my app on the top menu, every letter I type gets deleted immediately. If I paste a longer word, its letters are quickly deleted one by one -- I can see this from a callback function on setOnQueryTextListener: the function is called every time a letter is deleted, so if I paste a word with 5 letters, ie. "Hello", the function is quickly triggered with "Hello", "Hell", "Hel", "He", "H"...and my box is left empty.

I really can't think of any reason for this to happen.

This is how I implemented it.

menu_basic.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item
        android:id="@+id/menu_basic_search"
        android:actionViewClass="com.actionbarsherlock.widget.SearchView"
        android:icon="@drawable/react_search"
        android:showAsAction="ifRoom|collapseActionView"
        android:title="@string/description_search"/>

    <item android:id="@+id/menu_basic_menu"
        android:title="@string/description_menu"
        android:icon="@drawable/react_menu"
        android:showAsAction="always" />

</menu>

on my fragment .java

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        menu.clear();
        inflater.inflate(R.menu.menu_basic, menu);
        (getSherlockActivity()).getSupportActionBar().setHomeButtonEnabled(true);

        SearchManager searchManager = (SearchManager) getSherlockActivity().getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView = (SearchView) menu.findItem(R.id.menu_basic_search).getActionView();
        if (null != searchView )
        {
            searchView.setSearchableInfo(searchManager.getSearchableInfo(getSherlockActivity().getComponentName()));
            searchView.setIconifiedByDefault(false);
        }

        SearchView.OnQueryTextListener queryTextListener = new SearchView.OnQueryTextListener() 
        {
            @Override
            public boolean onQueryTextChange(String newText) 
            {
                Log.i("SEARCH newText", newText);
                return true;
            }

            @Override
            public boolean onQueryTextSubmit(String query) 
            {
                Log.i("SEARCH query", query);
                return true;
            }
        };
        searchView.setOnQueryTextListener(queryTextListener);
    }

Apart from this, I can't find any other reference I have to the SearchView on my code.

Any idea of where the issue could be?