Remove padding body block on output

[Garry Yao]

1. Load the editor with following source:

   <div>
   	<p>
   		foo</p>
   </div>
   
   

2. Focus the editor before switch to source mode.

• Actual:

  <div>
  	<p>
  		foo</p>
  </div>
  <p>&nbsp;</p>
  

• Expected: The last padding body paragraph created automatically by the editor is trimmed on output.

[Jakub Ś]

I could not reproduce the issue. Could you be more specific on this one?

[Garry Yao]

Sorry my fault, I've changed the desired input to reproduce it.

[Jakub Ś]

Acctually it's been reproducible from CKE 3.5.4 rev [6698]

[Jakub Ś]

Other tickets caused by revision [6698] - #7917, #8231, #9500, #8419.

[Piotrek Koszuliński]

Works fine on master.