             html += "</UL>\n"
           html += '\n'
           text += '\n'
+    if pastAuthors
+      subject = authorsSubject
 
     Email.send
       from: Accounts.emailTemplates.from

    html = ''
    text = ''
    bygroup = _.groupBy messageUpdates, (notification) -> notification.msg.group
    if messageUpdates.length != 1
      subject = "#{messageUpdates.length} updates in #{_.keys(bygroup).sort().join ', '}"
    bygroup = _.pairs bygroup
    bygroup = _.sortBy bygroup, (pair) -> pair[0]
    for [group, groupUpdates] in bygroup

          authorsHTML = (linkToAuthor msg.group, user for user in authors).join ', '
          if messageUpdates.length == 1
            subject = "#{authorsText} #{verb} '#{titleOrUntitled msg}' in #{msg.group}"
          else
            if pastAuthors?
              unless pastAuthors == authorsText
                pastAuthors = false
            else
              pastAuthors = authorsText
              authorsSubject = "#{authorsText} made #{subject}" ## n updates in ...
          #if diffs.length > 1
          #  dates = "between #{diffs[0].updated} and #{diffs[diffs.length-1].updated}"
          #else
