You can clone with
Addresses of the form "Name user@domain" are converted to "user@domain", even when not replacing the address. Need to preserve the address name, whether or not user/domain are replaced.
(note: this issue is just a reminder - I'll fix this, if you don't get around to fixing it first).
Have at it. I'm not actively using mail_safe on any projects at the moment (and in fact, I'm not using rails on any current projects), so I'm unlikely to fix this anytime soon.