#266 Cannot forward message with double-line From

[Bill Wohler]

1. Place the attached message in inbox.

2. Use `f' `(mh-forward)'.

3. Observe that ": Test subject" appears at the end of the header rather than at the end of the Subject header field.

4. Even if you move ": Test subject" to the end of the Subject header field, you get the following error when you send the message:

post: no addressees
send: message not delivered to anyone

That's because the following is inserted before the header for some reason:

--=-=-=
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="=-=-="

[Bill Wohler]

Message with a two-line From header field

[Mike Kupfer]

This was fixed by commit 2a4de5e5e5, which will appear in Emacs 28.1. Thanks to Lester Buck for the assist.