   showPreview: ->
     return unless value = @input.getValue().trim()
     markedValue = KD.utils.applyMarkdown value
+    return  if markedValue.trim() is "<p>#{value}</p>"
     tags = @input.getTokens().map (token) -> token.data if token.type is "tag"
     tagsExpanded = @utils.expandTokens markedValue, {tags}
     if not @preview


    options.destroyOnSubmit ?= no

    @input    = new ActivityInputView defaultValue: options.defaultValue
    @input.on "Escape", @bound "reset"

    @input.on "TokenAdded", (type, token) =>

        partial  : tagsExpanded
        click    : => @hidePreview()
      @input.addSubView @preview
    else
      @preview.updatePartial tagsExpanded

