[Evolution] still more on reply-to-HTML msg composition

[Fernando Pereira <fpereira whizbang com>]

If I hide the HTML MIME part in the message I received and hit "reply",
I get just the plain text part, and I can reply to the message rather
than having the composer crash when I try to delete the HTML. This is a
useful work-around, but I'll keep the offending message in case someone
wants to look at it for debugging.

-- F