Unwanted HTML Modifications

[InteXX]

I have this HTML markup between opening and closing ZML tags:

<li>QuickBooks<span style="font-size: 0.8em;"><sup>&amp;reg;</sup></span> Integrations</li>

Unfortunately, it's coming through like this:

<li>QuickBooks<span style="font-size: 0.8em;">
      <sup>&reg;</sup>
    </span> Integrations</li>

This results in an unwanted space displayed before the ® entity.

Is there any fix for this other than a string replacement after rendering?