# File lib/model-objects.rb, line 247
  def change hash, who, comment, silent
    what = []
    if title != hash[:title]
      what << "title"
      self.title = hash[:title]
    end

    if desc != hash[:description]
      what << "description"
      self.desc = hash[:description]
    end

    if reporter != hash[:reporter]
      what << "reporter"
      self.reporter = hash[:reporter]
    end

    unless what.empty? || silent
      log "edited " + what.join(", "), who, comment
      true
    end

    !what.empty?
  end