Carriage return insertion bug in "BuddyPress Group Email" plugin

After copying and pasting plain text into a Group Email, then the email delivered contains extra carriage returns between paragraphs. More disturbing is that carriage returns are also being inserted into the middle of a word used in the email. After our client reported this, we copied the text into a "Textmate" code editor to be sure there were not strange invisible characters copied from Microsoft Word.