Re: `hard-newline' changes trigger format=flowed in Gnus

[Chong Yidong]

Reiner Steib <address@hidden> writes:

> When copying some lines from the mail header (in Gnus' message mode)
> into the mail body, some of the newlines seem to be marked as `hard'.
> When sending (or previewing) the message, the function
> `fill-flowed-encode' detects the hard newlines and the whole message
> is encodes as format=flowed which leads to an unexpected output.

What is the intended purpose of fill-flowed-encode?  What is the
reason for message-mode to do anything special when there are hard
newlines in the buffer?