Variables are currently not resolved when "Reply to List" is chosen

Actually it turns out that this is a problem with the Stationery Add-on. I sent
a patch to its author, so he hopefully will fix it in the next release.

The following statement was missing a case for "reply to list":
=> stationery-composer line 113:

let applyStationery = (arguments.length > 0 && arguments[0]) ||
  (gMsgCompose.type == mct.New && Stationery.getPref('ApplyStationery_New')) ||
  (gMsgCompose.type == mct.MailToUrl &&
Stationery.getPref('ApplyStationery_MailToUrl')) ||
  (gMsgCompose.type == mct.Reply &&
Stationery.getPref('ApplyStationery_ReplyToSender')) ||
  (gMsgCompose.type == mct.ReplyToSender &&
Stationery.getPref('ApplyStationery_ReplyToSender')) ||
  (gMsgCompose.type == mct.ReplyAll &&
Stationery.getPref('ApplyStationery_ReplyAll')) ||

/** added by AG **/
  (gMsgCompose.type == mct.ReplyToList &&
Stationery.getPref('ApplyStationery_ReplyAll')) ||

  (gMsgCompose.type == mct.ForwardAsAttachment &&
Stationery.getPref('ApplyStationery_ForwardAsAttachment')) ||
  (gMsgCompose.type == mct.ForwardInline &&
Stationery.getPref('ApplyStationery_ForwardInline')) ||
  (gMsgCompose.type == mct.NewsPost &&
Stationery.getPref('ApplyStationery_NewsPost')) ||
  (gMsgCompose.type == mct.ReplyToGroup &&
Stationery.getPref('ApplyStationery_ReplyToGroup')) ||
  (gMsgCompose.type == mct.ReplyToSenderAndGroup &&
Stationery.getPref('ApplyStationery_ReplyToSenderAndGroup')) ;
    if (!applyStationery) return;