Hello,
When composing in HTML mode with "start new message above quote" set, there is an empty paragraph element at the top of the message body that is invisible to the user in the editor: <p></p> (right above the <div id="_rc_dig"> element). When this message is sent, a blank line appears on the resulting message.
However, when composing in HTML mode with "start new message below quote" or "do not quote the original message" set, the leading line is <p><br data-mce-bogus="1"></br></p> and that blank line is visible to the user in the editor. The resulting whitespace/blank lines are also visible when starting in HTML then switching to text and then back to HTML mode. Also, the resulting sent email accurately portrays the visible message in the editor (no leading blank line).
We upgraded from 1.0.4 in which the leading line, in default HTML compose mode, was always <p><br data-mce-bogus="1"></br></p>.
Any help is greatly appreciated.
-Steve