When a document is authored using Google Chrome (or the open source project Chromium), the extra endline separating two paragraphs is lost when the document is saved. This doesn't always happen, but one case is when paragraphs are copied from gmail and pasted into the Clearspace editor.

It appears what is happening is that in Chromium, an empty line is being represented by an empty div (<div></div>). When editing in Firefox, the div contains a line break tag (<div><br/></div>).