private TopicListService topicListService;
@Autowired
private TopicPrepareService prepareService;
@Autowired
private GroupDao groupDao;
<BUG>private ModelAndView mainTopicsFeedHandler(
HttpServletRequest request,</BUG>
TopicListRequest topicListForm,
HttpServletResponse response,
@Nullable Group group

private TopicListService topicListService;
@Autowired
private TopicPrepareService prepareService;
@Autowired
private GroupDao groupDao;
private ModelAndView mainTopicsFeedHandler(
Section section,
HttpServletRequest request,
TopicListRequest topicListForm,
HttpServletResponse response,
@Nullable Group group
