Copied and pasted   ended up with & #160;

(I left that space in & #160; intentionally otherwise MR turned it into *)

For my asterisk spacing I use:

<p class="asterisks">*&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;* &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*</p>

So I copied that and pasted it into a new book. But after implementing "Mend and prettify all HTML files" I got this: (actually several & #160#; things and my three asterisks)

<p class="asterisks">*************</p>

I know they're the same thing but Sigil never changed the &nbsp; before. Is this normal? So then if there is a lone &nbsp; in the book somewhere I really should look for & #160; right?