[Evolution] HDU stop reply response lines from being prefixed by '>'

[Rick Berger <rberger rogers com>]

Sometimes when I reply to an email Evolution treats the original as a
single object and quotes it that way. This means any response text I
insert in it is automatically quoited making it look like part of the
sender's message. How do I stop this so my response line aren't prefixed
with '> '? 

Rick Berger