Breaking a really long thread

[David Bremner]

Mark Walters <markwalters1009 at gmail.com> writes:

> I think we already have this, except it is called
> notmuch-mua-hidden-headers. It defaults to '("^User-Agent:").
>
> I think it would be reasonable to add In-Reply-To to this list.
>
> However, if I read the code correctly, currently we are changing
> message-hidden-headers globally which doesn't feel the right thing to
> do. Probably we should do something more like you suggest, and do the
> overriding just in notmuch-message-mode.
>

Summarizing, I see 3 related changes here

- fixing the code to let-bind message-hidden-headers instead of globally
  modify it

- adding in-reply-to notmuch-mua

- providing a keybinding to toggle visibility of hidden headers that
  works better than the current use of widen

d