Impossible to set font family if same is applied to beginning of selection.

[Artur Delura]

1. Open editor with following content:

   <p><span style="font-family:courier new,courier,monospace">&iquest;Que pasa?</span></p>
   <p>Buenos d&iacute;as.</p>
   

2. Press Ctrl + A.
3. Open font drop down.
4. Select "Courier New".

Expected result: Whole content font should become "Courier New".

Result: Font style resets.

[Piotrek Koszuliński]

This is the expected behaviour. As you can see in the drop down the "Courier" item is active. Clicking an active item removes the style.