public IActionResult MergeOverview()
        {
            var mergeRequest = _mergeSessionService.GetMergeRequest();

            var viewModel = new MergeOverviewViewModel(mergeRequest);

            return(View(viewModel));
        }
        public IActionResult MergeOverview(MergeOverviewViewModel viewModel)
        {
            if (!ModelState.IsValid)
            {
                return(View(viewModel));
            }

            return(RedirectToAction(nameof(ConfirmAndComplete)));
        }