[1575] HTML Message editor adds extra newlines

[exa-crw]

Using Firefox 2.0.0.14 with an account set by default to text only:

• Go to compose a new message, then change the editor type to html.
• Remove any signature and pre-loaded content.
• Type something, hit enter.
• Cursor Moves down two lines.
• Type something else then move the cursor to the end of the first line.
• Hit the Delete key to remove the character before the cursor.
• Roundcube removes the two carriage returns at a pace human eyes can keep up with.

There's also other weird but related behaviour that can cause a difficult to remove newline at the top of the message.

Is this a bug or have I missed a double-spacing setting somewhere?