Comment 55 for bug 120281

I don't understand what the wrapping-enabled check is doing. It looks like you're referring to the plain-text wrap-column value. That should make no difference at all when reading the text in. I think that check can be dropped.

You said in comment 52 that with wrapping=0, "it looks incorrect in preview"
-- could you expand on this, please? I want to make sure that you're not adding a hack to fix a problem that is better addressed elsewhere, especially when I am so eagerly anticipating get the meat of this problem fixed.

Note that there are known problems with wrapping=0 and plain-text mail -- see bug 261467. Don't work around that bug by adding this check in here, it'll just break things in a way that will make it more difficult to fix later on.

|mailnews.wraplength=0| is primarily a hack that people use because
|mail.compose.wrap_to_window_width| is neither well-known nor does it work that well. Ideally, when f=f is turned on, wrap_to_window_width would be automatically enabled as well, *and* the editor would display that correctly, but for now it doesn't work that way.