I've released CopySourceAsHtml version 1.2.3, but it's a bit of a step backward, and you might not want to upgrade.
CSAH 1.2.3 generates heavier HTML than CSAH 1.2.2. I'm releasing 1.2.3 now because at least two popular blog engines (dasBlog and Blogger) introduce spaces, line breaks, and other formatting errors when converting the lighter 1.2.2-produced HTML to XHTML for their feeds. If you're experiencing these errors, you should upgrade to 1.2.3. If not, you should wait for 1.2.4.