[MlMt] Cannot "Edit as new message" a message with Markdown

[Harvey Leff]

I am unable to "Edit as new message" any message that uses Markdown. 
When I try to do so, the message opens, but with the body empty.

In contrast, when I "Edit as new message" a message that uses Plain 
Text, there is no problem; i.e., the message body appears properly. Has 
anyone else seen this behavior? Is there a way around this or a fix? 
Thanks.

Harvey Leff
Portland, OR  USA