The model has the extra spaces trimmed and there is a single space between the words:
<pre class="ng-binding">Magazzini Alimentari Riuniti</pre>
In the DropDownList the value properly contains 2 spaces between the words.
In the data the selected item has 2 spaces between the words: Magazzini Alimentari Riuniti
The model value should be identical to the data and the extra spaces should not be trimmed.